Gravl vs Fitbod (2026): Cost, Free Workouts and Verdict

Gravl and Fitbod do the same basic job. You tell the app what equipment you have and how often you train, and it writes every workout for you, down to the weight on the bar. You never open a spreadsheet.

So the real differences are smaller and more practical: what each one costs, how many workouts you get free, how each decides your next weight, and which watches it runs on. Gravl is the newer app, with a 4.9 rating from about 6,000 App Store ratings. Fitbod is the established one, with 4.8 from 288,000 ratings and Apple’s Editors’ Choice badge.¹²

Every price, limit and feature below was checked on 27 October 2026 against both apps’ App Store and Google Play listings, their help pages and each company’s own description of its algorithm.

Gravl vs Fitbod: the short answer

Gravl is the better pick for most lifters who want an app to plan their gym sessions: it is cheaper on a yearly plan ($59.99–$89.99 against $79.99–$95.99), publishes in detail how it progresses your weights, and runs on Garmin watches. Fitbod is the safer pick if you want a long track record, a bigger exercise library and a family plan.¹³⁴²⁵⁶

	Gravl	Fitbod	SensAI
What it is	Workout planner built on your estimated 1RM3	Workout generator with two engines: exercise selection and load7	Conversational AI coach8
Monthly (US)	$14.991	$15.99; $12.99 also listed2	$6.998
Yearly (US)	$59.99, $79.99 or $89.991	$95.99; $79.99 also listed2	$69.998
Free to start	3 workouts; 5 in South America9	3 workouts, or a 7-day trial; Fitbod’s pages say both510	7-day trial8
How it progresses you	Rep ladder, then a weight step; you rate each exercise Easy, Ideal or Hard3	Heavier and lighter days, Max Effort Days, your logged reps in reserve7	Coach adjusts the plan from what you tell it and your Apple Health data811
Recovery model	Recovery drops with sets done; “Rest recommended” below 60%12	Recovery score of 0–100% per muscle; favours muscles not trained hard in 48–72 hours7	Sleep and overnight heart rate shape how hard Coach asks you to push11
Android	Yes, plus Wear OS13	Yes, plus Wear OS145	No; iOS only, on iPhone and Apple Watch8
Garmin watch app	Yes, about 70 models4	No; Garmin syncs as a data source5	No8
App Store rating	4.9 from 6K1	4.8 from 288K2	4.6 from 398

US App Store prices and ratings, checked 27 October 2026. Both apps list more than one price for some plans, so check the checkout screen on your own device.

Gravl’s own comparison page scores Gravl “7 wins out of 8 categories.”¹⁵ Treat every vendor’s comparison with care, including this one: SensAI makes a competing app, and SensAI’s column is in the table so you can see where it loses as well as where it differs.

How much do Gravl and Fitbod cost in 2026?

Gravl costs $14.99 a month, $34.99 for three months, or $59.99–$89.99 a year. Fitbod costs $15.99 a month or $95.99 a year, with $12.99 and $79.99 prices also listed. On a yearly plan Gravl is $5.00–$7.50 a month; Fitbod is $6.67–$8.00. Fitbod adds Duo and Family plans.¹²⁵⁶

Plan	Gravl	Fitbod
Monthly	$14.991	$15.99; $12.99 also listed25
3 months	$34.991	Not offered2
Yearly	$59.99, $79.99 or $89.991	$95.99; $79.99 also listed25
Yearly, per month	$5.00–$7.50	$6.67–$8.00
Lifetime	Web only; price shown after sign-in16	Not offered2
Bundles and families	Workouts + Macros, $89.99/yr, web only16	Duo (2 people) $159.99/yr; Family (up to 5) $359.99/yr6

App Store list prices, 27 October 2026. Fitbod also keeps six “Legacy Pricing” subscriptions on its listing for older members.²

Why several yearly prices for one plan? Both apps keep older or promotional price points live as separate products, and the one you are offered can vary. Budget for the higher number and treat the lower one as a good outcome. Fitbod’s FAQ gives $15.99 a month and $95.99 a year as its standard web prices.⁵

What do Gravl and Fitbod cost over three years?

Over three years on yearly plans, Gravl costs $179.97–$269.97 and Fitbod costs $239.97–$287.97. Paying monthly is far more expensive: $539.64 for Gravl at $14.99 and $575.64 for Fitbod at $15.99. For comparison, SensAI’s yearly plan totals $209.97 over the same three years and Hevy Pro $71.97.¹²⁸¹⁷

Plan	1 year	3 years
Gravl yearly, lowest ($59.99)	$59.99	$179.97
Gravl yearly, highest ($89.99)	$89.99	$269.97
Gravl 3-month ($34.99)	$139.96	$419.88
Gravl monthly ($14.99)	$179.88	$539.64
Fitbod yearly, lowest ($79.99)	$79.99	$239.97
Fitbod yearly, standard ($95.99)	$95.99	$287.97
Fitbod monthly ($15.99)	$191.88	$575.64
SensAI Premium yearly ($69.99)	$69.99	$209.97
Hevy Pro yearly ($23.99)	$23.99	$71.97

Calculated from US App Store list prices on 27 October 2026, assuming no price changes or promotions.

The two ranges overlap: Gravl’s middle yearly price matches Fitbod’s lower one at $79.99, and Gravl’s top $89.99 tier costs more than Fitbod’s $79.99 plan. Compared like for like, Gravl is cheaper: $20 less at the bottom of each yearly range and $6 less at the top. If two people in one household want Fitbod, the Duo plan works out at about $80 each per year.⁶

Is Gravl or Fitbod free?

Neither is free for long. Gravl lets you log 3 workouts, or 5 in South America, before you subscribe. Fitbod’s cancellation page says new users get 3 free workouts, while its FAQ describes a 7-day free trial. After that, Gravl asks you to subscribe, and Fitbod stops you starting or logging workouts until you pay.⁹⁵¹⁰

Gravl’s App Store listing puts it plainly: “Free to start. Full training plans, the Apple Watch app and analytics on Gravl Premium.”¹ Fitbod’s page is just as direct: after the trial period, “if you do not purchase a subscription, you will no longer be able to start or log workouts.”¹⁰

Three workouts is enough to judge the interface and the starting weights. It is not enough to judge either algorithm, because both learn from weeks of logged sets. If you want a strength app that stays free, Hevy’s free tier is the stronger option, and our Hevy vs Fitbod comparison covers that trade-off.¹⁷

How do Gravl and Fitbod pick your weights?

Both apps estimate your one-rep max (1RM) from the sets you log and prescribe the next session from it. Gravl adds reps first, then weight, and asks you to rate each exercise Easy, Ideal or Hard. Fitbod rotates heavier and lighter days, schedules Max Effort Days and reads the reps in reserve you log.³⁷

	Gravl	Fitbod
Engine	One estimated 1RM per exercise, with the next session worked back from it3	“Two core engines: an Exercise Selector (what you do) and a Capability Recommender (how much weight, sets, and reps)”7
1RM estimate	8 reps at 100 kg ≈ 124 kg; stops climbing past 15 reps3	“Established prediction equations (such as the Epley formula)”7
Your feedback	Easy / Ideal / Hard after each exercise; skipping counts as Hard3	Logged reps in reserve “directly influence how aggressively Fitbod loads your next session”7
Progression	Rep ladder (8-7-6 → 8-8-6 → 8-8-8), then one weight step3	Cycles heavier and lighter days; a Max Effort Day asks for as many reps as possible on the final set7
Safety brake	Estimated 1RM never rises more than about 10% in one session3	Not published
Starting weights	From your sex, bodyweight and experience level; a returning exercise carries over about 90% of progress from a close variant, about half from general work on that muscle183	Seeds the weight “from aggregate data across millions of similar users”7
Rep ranges by goal	Not published	Hypertrophy 6–12 reps and 10–20 sets per muscle per week; strength 1–5 reps7
Exercise choice	Ranked by importance and your history, picked “with a controlled amount of randomness”3	Favours well-recovered muscles7

How does Gravl progress your weights?

After an exercise you rate Hard, Gravl keeps the weight and adds one rep to one set next time, so 8-7-6 becomes 8-8-6, then 8-8-7, then 8-8-8. When every set hits the target, the weight goes up one equipment step. Gravl calls this double progression.³

Each rung adds roughly 1 to 2% more total work, and every weight is snapped to the plates, dumbbells or machine stack your gym actually has.³ Rating an exercise Ideal nudges your estimated max up a little; rating it Easy tells Gravl its estimate was too low, and it jumps.³ Julián, Gravl’s co-founder, sums up the logic in one line: “earn the reps, then earn the weight.”³

The second exercise for a muscle in the same session gets about 7% less than full strength, to allow for fatigue.³ And after more than two weeks without training, suggestions ease off by about 1% a week.³ Our Gravl app review walks through the full algorithm.

How does Fitbod progress your weights?

Fitbod estimates your 1RM with formulas such as Epley, then varies the load across sessions instead of climbing in a straight line. It alternates heavier and lighter days, flags one or two exercises every few workouts as a Max Effort Day, and adjusts how hard it pushes from the reps in reserve you log.⁷

Fitbod says it rotates heavier and lighter days “to support long-term progressive overload and reduce accommodation.”⁷ It also tracks a strength score per muscle group, called mStrength, and averages those into an Overall Strength Score.¹⁹ For brand-new exercises it uses data from similar users, which gives you a sensible starting weight on day one.⁷

The trade-off is visibility. Gravl publishes its rules down to the percentages. Fitbod describes its approach in general terms, and states no cap on how fast your weights can climb. Our Fitbod review covers how Fitbod builds its sessions in more detail.

Which handles recovery better, Gravl or Fitbod?

Both track recovery per muscle from the sets you log and from workouts imported through Apple Health or Health Connect. Fitbod scores each muscle 0–100% and favours those not trained hard in 48–72 hours. Gravl recommends a rest day below 60% recovery. Neither reads your sleep or HRV.^122021719

	Gravl	Fitbod
Per-muscle recovery	Drops by the number of sets you did for that muscle group12	A recovery percentage from 0 to 100% for each muscle group7
What it does with it	“Rest recommended” when recovery for your next workout falls below 60%12; its recovery split keeps returning to the muscles trained least recently that are recovered enough20	Prioritises “well-recovered muscles — the ones that haven’t been heavily trained in the last 48–72 hours”7
Outside workouts	Imported runs and rides are rated Low, Moderate or Hard: about 1, 1–2 or 2–3 days of recovery21	Workouts from Apple Health, Health Connect, Fitbit and Strava update muscle recovery automatically7
Sleep and HRV	Not listed among the algorithm’s inputs312	Not used; Fitbod tells you to “override the plan” after poor sleep or stress19

Fitbod’s 48–72 hour window is a reasonable default, but recovery depends on how hard you trained. In a study by Ricardo Morán-Navarro and Jesús Pallarés at the University of Murcia, sets taken to failure slowed recovery “up to 24-48 h post-exercise” compared with the same work stopped short of failure.²² That is one reason the effort feedback both apps collect matters: it is the only signal either has about how hard a session really was.

If you want sleep and overnight heart rate to change your training day to day, neither app does that. SensAI does, through Apple Health, which we cover below.

Is Gravl or Fitbod better for beginners?

Both work for beginners because both choose your exercises and starting weights. Fitbod estimates starting loads from similar users; Gravl from your sex, bodyweight and experience level. Gravl’s three-step effort rating is simpler than logging reps in reserve, which beginners judge somewhat less accurately than experienced lifters.⁷³¹⁸²³

Gravl’s first estimate of your strength uses biological sex, bodyweight and the experience level you pick, then corrects it from your logged sets.¹⁸ Fitbod seeds new exercises from users with matching profiles.⁷ Either way, expect the first two or three weeks of weights to be off and to correct quickly.

The feedback step is where beginners differ. Michael Zourdos’s lab at Florida Atlantic University built the reps-in-reserve (RIR) scale that Fitbod’s logging resembles, and found it “a practical method to regulate daily training load”, but it tracked bar speed less closely in novices than in experienced lifters (r = −0.77 against −0.88).²³ Gravl’s Easy / Ideal / Hard rating asks less of you. Our guide to RPE and RIR explains how to rate effort accurately.

The bigger beginner risk is quitting. In a 2026 study of 389,481 app users, training consistency in the first 28 days was “the strongest predictor of adherence,” and only 10.1% of beginners were still training at least weekly at 12 months.²⁴ The data came from Fitbod’s own users under a data-sharing agreement, and one author worked for Fitbod, so read it as a strong observational signal, not a trial. The practical lesson holds for both apps: pick the one you will open three times a week for the first month.

What does the research say about how these apps program training?

The core methods behind both apps are well supported. Estimating 1RM from submaximal sets is accurate, adding reps works about as well as adding load, effort-based loading matches fixed percentages, and training each muscle twice a week beats once. No trial has tested either app’s programming; the one large Fitbod-data study measured adherence, not gains.^2526272829

Method	What the research found	Study
Estimate 1RM from a set	1RM predicted from a 5-rep max with R² = 0.993 on chest press; use no more than 10 reps for linear equations	Reynolds et al., 2006, 70 adults25
Add reps before weight (Gravl)	Rep and load progression produced similar muscle and strength gains over 8 weeks	Plotkin et al., 2022, 43 trained adults26
Adjust by effort, not fixed %	Both worked; effort-based loading “may provide a small 1RM strength advantage in a majority of individuals”	Helms et al., 2018, 21 trained men27
Adjusting load by effort, overall	No significant 1RM difference against percentage-based loading (2.07 kg, p = 0.09; 6 studies)	Hickmott et al., 2022, 15 studies in total28
Train each muscle twice a week	Higher frequency beat lower frequency for growth (effect size 0.49 vs 0.30); twice a week beat once	Schoenfeld et al., 201629
Frequency and strength	With volume equated, frequency had no significant effect on strength gains	Grgic et al., 2018, 22 studies30
Rotate exercises (Fitbod, Gravl)	App-randomised variation matched fixed exercises for gains and raised motivation	Baz-Valle et al., 2019, 21 trained men31
Too much variation	“Excessive, random variation may compromise muscular gains”	Kassiano et al., 2022, 8 studies32
App-guided training	Adherence 81.2% with an app, 88.2% supervised, 52.2% with a PDF plan	Gavanda et al., 2025, 79 adults33
Weekly volume	Size and strength gains rise with volume, with diminishing returns	Pelland et al., 2026, 67 studies34

Reps or load: does Gravl’s ladder work?

Gravl’s rep ladder rests on one of the better-tested ideas in strength training. In the 2022 trial whose senior author was Brad Schoenfeld of Lehman College, City University of New York, lifters who added reps at a fixed load grew and got stronger about as much as those who added load. The authors concluded that “both progressions of repetitions and load appear to be viable strategies.”²⁶

Effort ratings: does Fitbod’s RIR logging work?

Effort-based loading matches fixed percentages of 1RM. Eric Helms, of the Sport Performance Research Institute New Zealand at Auckland University of Technology, compared the two in trained men. Both groups improved, and the effort group had a small edge in most individuals.²⁷ A 2022 meta-analysis of 15 studies, six of which compared load autoregulation with percentage-based loading, found autoregulated and standardized load prescription “produced similar improvements in strength.”²⁸ Fitbod’s RIR input and Gravl’s three-step rating are both versions of this idea.

Does rotating exercises help or hurt?

Both apps vary your exercises. In one trial, exercises were “randomly varied each session via a computerized app,” and those lifters gained as much as a fixed-exercise group while reporting more motivation.³¹ A 2022 review warned the other way: “excessive, random variation may compromise muscular gains.”³² If either app keeps swapping your main lifts, pin the ones you want to progress.

How often should each muscle be trained?

Fitbod’s recovery model and Gravl’s recovery split both push you toward training each muscle more than once a week. A 2016 meta-analysis found “the major muscle groups should be trained at least twice a week to maximize muscle growth.”²⁹ For strength, Jozo Grgic and colleagues found frequency mattered little once weekly volume was equal.³⁰ Weekly sets matter more than the app: see our guide to training volume per muscle per week.

Gravl vs Fitbod on Android, Apple Watch and Garmin

Both apps run on iPhone and Android, and both have Apple Watch and Wear OS apps. Only Gravl has a Garmin watch app, on about 70 models. Fitbod syncs data from Garmin but has no app on the watch. Gravl supports iOS 16.4 and later; Fitbod needs iOS 18.^11342145

Platform	Gravl	Fitbod
iPhone	iOS 16.4 or later1	iOS 18.0 or later2
Android	Yes; 4.9 from 17.6K Google Play reviews, 1M+ downloads13	Yes; 4.5 from 31.8K Google Play reviews, 1M+ downloads14
Apple Watch	Yes; needs your phone within reach to start a session135	Yes5
Wear OS	Yes, with Tiles13	Yes, with a Tile14
Garmin	About 70 models; Connect IQ 3.4+; companion that mirrors the phone workout; no monochrome watches4	No watch app; Garmin listed as a data-sync source5
Apple Health / Health Connect	Syncs workouts and active energy21	Imports workouts to update recovery7
Strava	Pushes finished workouts21	Listed integration5

If you train with a Garmin on your wrist and want to see the next set there, Gravl is the only one of the two that does it. On the Apple Watch, Gravl’s listing calls its app “standalone,” but its help center says the watch needs your phone within reach to start a session.¹³⁵

Does Gravl or Fitbod have more exercises and videos?

Fitbod has the bigger library: its App Store listing says “over 1000 exercises” with multi-angle videos, though its own pages also give 800+ and 1,600+. Gravl lists 300+ trainer-led videos you can download for offline use. Fitbod has far more ratings; Gravl has a public algorithm.¹²⁷⁶

	Gravl	Fitbod
Exercises and videos	300+ trainer-led videos, downloadable offline1	“Over 1000 exercises” with “Hi-res, multi-angle videos”2
Scale	“Over 1 million users,” company figure35	15 million downloads, company figure5
Latest iOS version	1.53.6, 14 October 20261	8.37.0, 19 October 2026; launched 201525
Extras	Workout Focus app-blocking, creator-led plans, web Macros bundle116	Duo and Family plans6

Fitbod’s own figures vary from page to page: 800+, 1,000+ and 1,600+ exercises, and anywhere from about 150 million to 400 million+ logged workouts.²⁵⁷¹⁹⁶ We use the App Store figure above because it is the one Fitbod shows at the point of purchase.

Is Gravl better than Fitbod?

For most gym lifters in 2026, yes: Gravl is cheaper on yearly plans, more transparent and supports Garmin. Fitbod is better if you want a large exercise library, a long track record, a Duo or Family plan, or recovery that updates automatically from runs and rides. Choose by your situation, not the rating.¹³⁴²⁷⁶

If you…	Choose	Why
Want the lowest yearly price	Gravl	$59.99–$89.99 against $79.99–$95.9912
Wear a Garmin	Gravl	Only Gravl has a Garmin watch app45
Want to know why each weight was picked	Gravl	Published rules; tap a target weight to see the reason13
Want the biggest exercise library	Fitbod	Over 1,000 exercises with multi-angle videos2
Train with a partner or family	Fitbod	Duo $159.99/yr; Family $359.99/yr6
Run or cycle a lot as well	Fitbod	Imported cardio updates recovery automatically, without a rating step217
Want a long public track record	Fitbod	288K App Store ratings and Editors’ Choice2
Use an older iPhone	Gravl	iOS 16.4 against iOS 1812

Both apps are well built, and both rest on methods the research supports. The deciding factors are price, your watch and whether you would rather see the rules or trust a bigger dataset.

What about Hevy? Gravl vs Fitbod vs Hevy

Hevy is a different kind of app: a logger for the program you choose, free with limits or $23.99 a year for Pro. Gravl and Fitbod write the program for you. Hevy Trainer adds automatic weight adjustments, but only with Pro, so it is the budget route to app-set weights.¹⁷³⁶

	Gravl	Fitbod	Hevy
Core job	Plans every session3	Plans every session7	Logs the session you chose17
Yearly (US)	$59.99–$89.991	$79.99–$95.992	Pro $23.99, or $74.99 lifetime17
Free	3 workouts9	3 workouts or 7-day trial510	Yes, with limits17
Auto-progression	Built in3	Built in7	Hevy Trainer, Pro only36

Hevy states it plainly: “Trainer is a Pro feature.”³⁶ If you already follow a program you like, paying for Gravl or Fitbod means paying for planning you will ignore.

Where does SensAI fit?

SensAI is a conversational AI coach: Coach builds your program, and you tell it about your week to adjust the plan. It reads Apple Health, so sleep and overnight heart rate from your device shape how hard it asks you to push. It costs $6.99 a month or $69.99 a year, on iPhone and Apple Watch only.⁸¹¹

Gravl and Fitbod both steer by numbers you enter in the app. SensAI steers by conversation and by your device data. As SensAI’s Help Center puts it, “Sleep and overnight heart rate from your device shape how hard Coach asks you to push on a given day.”¹¹ Workouts from your watch or ring land in Apple Health, and Coach sees them on the same timeline it uses to build next week’s program.¹¹

There are limits. SensAI reads Apple Health only, so your device’s app has to write to Apple Health first. Apple Watch is the only device that shares HRV that way; Garmin’s Body Battery and WHOOP’s Recovery stay in their own apps.¹¹ To see what your device shares, read how to connect a wearable to SensAI through Apple Health.

Where Gravl and Fitbod beat SensAI: both run on Android, Gravl runs on Garmin, Fitbod has a far larger exercise library, and both have far more App Store ratings: 6K for Gravl and 288K for Fitbod, against 39 for SensAI.¹²⁸ Gravl’s lowest yearly price, $59.99, is also $10 below SensAI’s $69.99. SensAI fits if you want a coach you can talk to and want your recovery data, not just your logged sets, to change the plan.

Frequently asked questions

Fitbod vs Gravl: which is better?

Gravl, for most gym lifters. It costs less on a yearly plan ($59.99–$89.99 against $79.99–$95.99), publishes its progression rules and supports Garmin watches. Fitbod has a larger exercise library, far more ratings and Duo and Family plans.¹³⁴²⁶

How much does the Gravl app cost vs Fitbod?

Gravl is cheaper on yearly plans: $59.99, $79.99 or $89.99 against Fitbod’s $79.99 or $95.99. Monthly, Gravl’s $14.99 is below Fitbod’s standard $15.99, though Fitbod also lists $12.99. Over three years on yearly plans, Gravl costs $179.97–$269.97 and Fitbod $239.97–$287.97.¹²

Is Gravl or Fitbod free?

Neither, beyond a short start. Gravl gives you 3 free workouts, or 5 in South America. Fitbod’s pages describe 3 free workouts in one place and a 7-day free trial in another. After that, both ask you to subscribe to keep logging.⁹⁵¹⁰

Does Fitbod work with Garmin?

Fitbod can sync data from Garmin, but it has no Garmin watch app; its watch apps are for Apple Watch and Wear OS. Gravl has a Garmin app on about 70 models running Connect IQ 3.4 or later.⁵⁴

Do Gravl or Fitbod use sleep or HRV?

No. Both base recovery on the sets you log and on workouts imported from Apple Health or Health Connect. Fitbod advises overriding the plan yourself after poor sleep or stress.¹²⁷¹⁹

Can I use Gravl or Fitbod on Android?

Yes. Both are on Google Play with more than 1 million downloads, and both have Wear OS apps. Gravl rates 4.9 from 17.6K reviews there; Fitbod 4.5 from 31.8K.¹³¹⁴

Which is better for building muscle, Gravl or Fitbod?

Neither has been tested in a trial. Both use methods the research supports: progressive overload, effort-based adjustment and training each muscle about twice a week. Your weekly sets per muscle matter more than which app writes them.^26272934

The bottom line

Gravl and Fitbod both write your workouts and set your weights from your logged sets. Gravl is cheaper, publishes its rules and runs on Garmin. Fitbod has the bigger library, the longer record and family plans. Try each for its 3 free workouts, then pay for the one you kept opening.¹⁹²¹⁰

Gravl’s strength is transparency: you can see the rep ladder, the 10% cap and the fatigue discount, and predict what it will ask of you next week.³ Fitbod’s strength is scale: more exercises, more users and recovery that updates itself from your runs and rides.²⁷

Neither one reads how you slept, and neither takes a conversation about your week; you steer them with effort ratings and recovery settings. If that matters more to you than plate-exact weights, a conversational coach like SensAI fits better. If you want to walk into the gym and be told exactly what to lift, both do it well, and Gravl does it for less.

---

References

Footnotes

1. GAINS COACH PTY LTD (developer GAINS AI). “Gravl: AI Personal Trainer — Progressive Overload Tracker.” Apple App Store listing (id6450921637) — in-app purchases Monthly Membership $14.99, 3 Months Membership $34.99, Yearly Membership $59.99, $79.99 and $89.99; “Free to start. Full training plans, the Apple Watch app and analytics on Gravl Premium”; “Gravl estimates your one-rep max from your logged history and prescribes the next session from it”; “A standalone Apple Watch app”; “300+ trainer-led exercise videos, downloadable for offline use”; version 1.52 release notes: “Tap any target weight and Gravl tells you why”; requires iOS 16.4; 4.9 rating from 6K ratings; version 1.53.6, October 14, 2026. Accessed October 27, 2026. https://apps.apple.com/us/app/gravl-ai-personal-trainer/id6450921637 ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹ ↩¹⁰ ↩¹¹ ↩¹² ↩¹³ ↩¹⁴ ↩¹⁵ ↩¹⁶ ↩¹⁷ ↩¹⁸ ↩¹⁹ ↩²⁰ ↩²¹ ↩²² ↩²³ ↩²⁴ ↩²⁵ ↩²⁶ ↩²⁷ ↩²⁸

2. Fitbod, Inc. “Fitbod: Gym & Fitness Planner.” Apple App Store listing (id1041517543) — in-app purchases Monthly Plan $15.99 and $12.99, A Year of Fitbod Elite $95.99 and $79.99, and six “(Legacy Pricing) fitbod ELITE” subscriptions; “After your free trial has ended”; “Explore over 1000 exercises”; “Hi-res, multi-angle videos of each exercise”; requires iOS 18.0; Editors’ Choice; 4.8 rating from 288K ratings; version 8.37.0, October 19, 2026. Accessed October 27, 2026. https://apps.apple.com/us/app/fitbod-gym-fitness-planner/id1041517543 ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹ ↩¹⁰ ↩¹¹ ↩¹² ↩¹³ ↩¹⁴ ↩¹⁵ ↩¹⁶ ↩¹⁷ ↩¹⁸ ↩¹⁹ ↩²⁰ ↩²¹ ↩²² ↩²³ ↩²⁴ ↩²⁵ ↩²⁶ ↩²⁷ ↩²⁸ ↩²⁹

3. Julián (Co-Founder, Gravl). “Inside the Gravl algorithm: how your workouts are built.” Gravl Blog, July 16, 2026 — 8 reps at 100 kg ≈ 1 rep at about 124 kg; estimate stops climbing past 15 reps; Easy / Ideal / Hard ratings, skipped rating treated as Hard; rep ladder 8-7-6 to 8-8-6, roughly 1 to 2% more total work per step, “earn the reps, then earn the weight”; estimated 1RM never rises more than about 10% in a session; about 7% less in the second slot; weights snapped to available equipment; about 1% per week easing after more than two weeks off; variant exercises transfer at about 90%, general muscle work about half; exercises picked “with a controlled amount of randomness”. https://gravl.ai/blog/how-gravl-algorithm-works ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹ ↩¹⁰ ↩¹¹ ↩¹² ↩¹³ ↩¹⁴ ↩¹⁵ ↩¹⁶ ↩¹⁷ ↩¹⁸ ↩¹⁹ ↩²⁰ ↩²¹ ↩²² ↩²³ ↩²⁴ ↩²⁵

4. Gravl Help Center. “Gravl on your Garmin watch.” Updated August 28, 2026 — “Gravl runs on around 70 Garmin models”; requires Connect IQ 3.4 or later; the watch app is a companion that mirrors the phone workout; “Monochrome watches aren’t supported.” https://gravl.ai/help/gravl-on-your-garmin-watch ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸

5. Fitbod, Inc. “Frequently Asked Questions.” — “All users worldwide have access to the same monthly and yearly subscription plans, as well as the 7-day free trial”; monthly $15.99 and annual $95.99; “Apple Watch and Wear OS companion apps”; “Wearable Sync: Apple Health, Fitbit, Garmin, Strava”; Launch Year: 2015; “App Downloads: 15 million”. Accessed October 27, 2026. https://fitbod.me/faqs/ ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹ ↩¹⁰ ↩¹¹ ↩¹² ↩¹³ ↩¹⁴ ↩¹⁵ ↩¹⁶ ↩¹⁷ ↩¹⁸ ↩¹⁹ ↩²⁰

6. Chen A. “Everything You Need to Know About Fitbod’s New Family Plan Offering.” Fitbod Blog, September 17, 2026 — Duo for up to 2 users at $159.99 per year and Family for up to 5 users at $359.99 per year; “Full exercise library with over 1,600 HD video demonstrations”. https://fitbod.me/blog/fitbods-new-family-plan-offering/ ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹ ↩¹⁰

7. Fitbod, Inc. “How Fitbod Generates Your Personalized Workouts: Meet the Fitbod Algorithm.” Fitbod Blog, June 9, 2026 — “two core engines: an Exercise Selector (what you do) and a Capability Recommender (how much weight, sets, and reps)”; recovery percentage (0–100%) per muscle group, prioritising muscles not heavily trained in the last 48–72 hours; 1RM via “established prediction equations (such as the Epley formula)”; new exercises seeded “from aggregate data across millions of similar users”; hypertrophy 6–12 reps and 10–20 sets/muscle/week, strength 1–5 reps; cycles between heavier and lighter days; Max Effort Days; “Your logged RiR values directly influence how aggressively Fitbod loads your next session”; workout data from Apple Health, Health Connect, Fitbit and Strava updates muscle recovery; “800+ exercises”; “400 million+ logged workouts”. https://fitbod.me/blog/fitbod-algorithm/ ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹ ↩¹⁰ ↩¹¹ ↩¹² ↩¹³ ↩¹⁴ ↩¹⁵ ↩¹⁶ ↩¹⁷ ↩¹⁸ ↩¹⁹ ↩²⁰ ↩²¹ ↩²² ↩²³ ↩²⁴ ↩²⁵ ↩²⁶ ↩²⁷ ↩²⁸ ↩²⁹

8. Origami, Inc. “SensAI: Fitness Sensei.” Apple App Store listing (id6738963099) — SensAI Premium $6.99 monthly, $69.99 yearly; “Get full access free for 7 days”; requires iOS 26 and watchOS 26; iPhone and Apple Watch; 4.6 rating from 39 ratings. Accessed October 27, 2026. https://apps.apple.com/us/app/sensai-fitness-sensei/id6738963099 ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹ ↩¹⁰ ↩¹¹

9. Gravl Help Center. “Managing your subscription.” — “Before subscribing you can log 3 workouts for free, or 5 if you are in South America.” Accessed October 27, 2026. https://gravl.ai/help/managing-your-subscription ↩ ↩² ↩³ ↩⁴ ↩⁵

10. Fitbod, Inc. “How to cancel Fitbod.” — “New users are provided with a trial period of 3 free workouts… After this trial period, if you do not purchase a subscription, you will no longer be able to start or log workouts.” Accessed October 27, 2026. https://fitbod.me/cancel-fitbod/ ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶

11. SensAI Help Center. “Connect your wearable to SensAI through Apple Health.” Last updated September 25, 2026 — SensAI reads Apple Health only; “Apple Watch is the only device on this list that shares HRV”; Garmin Body Battery and WHOOP Recovery and Strain stay in their own apps; device workouts sit on the same timeline Coach uses to build next week’s program; “Sleep and overnight heart rate from your device shape how hard Coach asks you to push on a given day.” https://www.sensai.fit/help/connect-wearable-to-sensai-apple-health ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶

12. Gravl Help Center. “Gravl muscle fatigue and recovery.” August 7, 2026 — recovery drops by the number of sets done for the muscle group; “When recovery for your next workout drops below 60%, the pill on your workout card switches to “Rest recommended”.” https://gravl.ai/help/gravl-muscle-fatigue-and-recovery ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶

13. Gravl. Google Play listing (com.liteup.getgains) — 4.9 rating from 17.6K reviews; 1M+ downloads; “A standalone Wear OS app” with Tiles; updated October 15, 2026. Accessed October 27, 2026. https://play.google.com/store/apps/details?id=com.liteup.getgains ↩ ↩² ↩³ ↩⁴ ↩⁵

14. Fitbod. Google Play listing (com.fitbod.fitbod) — 4.5 rating from 31.8K reviews; 1M+ downloads; “Integrated with Wear OS, with quick access to your workout with the Tile”; updated October 24, 2026. Accessed October 27, 2026. https://play.google.com/store/apps/details?id=com.fitbod.fitbod ↩ ↩² ↩³ ↩⁴ ↩⁵

15. Gravl. “Gravl vs Fitbod.” Gravl Blog, July 28, 2026 — vendor comparison scoring Gravl “7 wins out of 8 categories”. https://gravl.ai/blog/gravl-vs-fitbod ↩

16. Gravl Help Center. “Gravl lifetime plan” (web-only Lifetime plan at signup.gravl.ai) and “Gravl Workouts + Macros bundle” ($89.99 per year in the US, web only). Updated October 27, 2026. https://gravl.ai/help/gravl-lifetime-plan and https://gravl.ai/help/gravl-workouts-macros-bundle ↩ ↩² ↩³

17. Hevy Studios S.L. “Hevy - Workout Tracker Gym Log.” Apple App Store listing (id1458862350) — Hevy Pro $2.99 and $3.99 monthly, $23.99 yearly, $74.99 lifetime; “If you don’t purchase Hevy Pro, you can keep using Hevy for free”; 4.9 rating from 100K ratings. Accessed October 27, 2026. https://apps.apple.com/us/app/hevy-workout-tracker-gym-log/id1458862350 ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶

18. Gravl Help Center. “Gravl science: understand your recommended weights.” September 27, 2026 — starting weights from biological sex, bodyweight and experience level. https://gravl.ai/help/gravl-science-understand-your-recommended-weights ↩ ↩² ↩³

19. Fitbod, Inc. “How Fitbod’s AI Knows Exactly When You Should Lift Heavier and When to Recover.” Fitbod Blog, January 8, 2026 — mStrength per muscle group and an Overall Strength Score; “if you feel unusually fatigued, sore, or off your game from illness, stress, poor sleep, etc., override the plan and choose lighter work.” https://fitbod.me/blog/how-fitbods-ai-knows-exactly-when-you-should-lift-heavier-and-when-to-recover/ ↩ ↩² ↩³ ↩⁴ ↩⁵

20. Gravl Help Center. “Gravl AI: the magic behind the recovery split.” — “it keeps coming back to the muscles you have trained least recently and that are recovered enough to train”. Accessed October 27, 2026. https://gravl.ai/help/gravl-ai-the-magic-behind-the-recovery-split ↩ ↩²

21. Gravl Help Center. “Connected apps: Apple Health, Health Connect and Strava.” September 27, 2026 — Apple Health and Health Connect workout sync; imported workouts rated Low effort (about 1 day of recovery), Moderate (usually 1-2 days) or Hard (2-3 days); finished workouts pushed to Strava. https://gravl.ai/help/connected-apps-apple-health-health-connect-and-strava ↩ ↩² ↩³ ↩⁴ ↩⁵

22. Morán-Navarro R, Pérez CE, Mora-Rodríguez R, de la Cruz-Sánchez E, González-Badillo JJ, Sánchez-Medina L, Pallarés JG. “Time course of recovery following resistance training leading or not to failure.” European Journal of Applied Physiology, 2017;117(12):2387-2399. PMID: 28965198. https://pubmed.ncbi.nlm.nih.gov/28965198/ ↩

23. Zourdos MC, Klemp A, Dolan C, Quiles JM, Schau KA, Jo E, Helms E, Esgro B, Duncan S, Garcia Merino S, Blanco R. “Novel Resistance Training-Specific Rating of Perceived Exertion Scale Measuring Repetitions in Reserve.” Journal of Strength and Conditioning Research, 2016;30(1):267-275. PMID: 26049792. https://pubmed.ncbi.nlm.nih.gov/26049792/ ↩ ↩²

24. Conti F, Marzagão T, Galpin AJ, Schoenfeld BJ. “Predictors of long-term resistance exercise adherence: evidence from a large cohort of mobile app users of various experience levels.” Frontiers in Sports and Active Living, 2026;8:1855668. PMID: 42638731. https://pubmed.ncbi.nlm.nih.gov/42638731/ ↩

25. Reynolds JM, Gordon TJ, Robergs RA. “Prediction of one repetition maximum strength from multiple repetition maximum testing and anthropometry.” Journal of Strength and Conditioning Research, 2006;20(3):584-592. PMID: 16937972. https://pubmed.ncbi.nlm.nih.gov/16937972/ ↩ ↩²

26. Plotkin D, Coleman M, Van Every D, Maldonado J, Oberlin D, Israetel M, Feather J, Alto A, Vigotsky AD, Schoenfeld BJ. “Progressive overload without progressing load? The effects of load or repetition progression on muscular adaptations.” PeerJ, 2022;10:e14142. PMID: 36199287. https://pubmed.ncbi.nlm.nih.gov/36199287/ ↩ ↩² ↩³ ↩⁴

27. Helms ER, Byrnes RK, Cooke DM, Haischer MH, Carzoli JP, Johnson TK, Cross MR, Cronin JB, Storey AG, Zourdos MC. “RPE vs. Percentage 1RM Loading in Periodized Programs Matched for Sets and Repetitions.” Frontiers in Physiology, 2018;9:247. PMID: 29628895. https://pubmed.ncbi.nlm.nih.gov/29628895/ ↩ ↩² ↩³ ↩⁴

28. Hickmott LM, Chilibeck PD, Shaw KA, Butcher SJ. “The Effect of Load and Volume Autoregulation on Muscular Strength and Hypertrophy: A Systematic Review and Meta-Analysis.” Sports Medicine - Open, 2022;8(1):9. PMID: 35038063. https://pubmed.ncbi.nlm.nih.gov/35038063/ ↩ ↩² ↩³

29. Schoenfeld BJ, Ogborn D, Krieger JW. “Effects of Resistance Training Frequency on Measures of Muscle Hypertrophy: A Systematic Review and Meta-Analysis.” Sports Medicine, 2016;46(11):1689-1697. PMID: 27102172. https://pubmed.ncbi.nlm.nih.gov/27102172/ ↩ ↩² ↩³ ↩⁴

30. Grgic J, Schoenfeld BJ, Davies TB, Lazinica B, Krieger JW, Pedisic Z. “Effect of Resistance Training Frequency on Gains in Muscular Strength: A Systematic Review and Meta-Analysis.” Sports Medicine, 2018;48(5):1207-1220. PMID: 29470825. https://pubmed.ncbi.nlm.nih.gov/29470825/ ↩ ↩²

31. Baz-Valle E, Schoenfeld BJ, Torres-Unda J, Santos-Concejero J, Balsalobre-Fernández C. “The effects of exercise variation in muscle thickness, maximal strength and motivation in resistance trained men.” PLoS One, 2019;14(12):e0226989. PMID: 31881066. https://pubmed.ncbi.nlm.nih.gov/31881066/ ↩ ↩²

32. Kassiano W, Nunes JP, Costa B, Ribeiro AS, Schoenfeld BJ, Cyrino ES. “Does Varying Resistance Exercises Promote Superior Muscle Hypertrophy and Strength Gains? A Systematic Review.” Journal of Strength and Conditioning Research, 2022;36(6):1753-1762. PMID: 35438660. https://pubmed.ncbi.nlm.nih.gov/35438660/ ↩ ↩²

33. Gavanda S, Held S, Schrey S, Oberwetter K, Lazzaro PM, Pergelt M, Geisler S. “Optimizing Resistance Training Outcomes: Comparing In-Person Supervision, Online Coaching, and Self-Guided Approaches: A Randomized Controlled Trial.” Journal of Strength and Conditioning Research, 2025;39(11):1129-1137. PMID: 40728831. https://pubmed.ncbi.nlm.nih.gov/40728831/ ↩

34. Pelland JC, Remmert JF, Robinson ZP, Hinson SR, Zourdos MC. “The Resistance Training Dose Response: Meta-Regressions Exploring the Effects of Weekly Volume and Frequency on Muscle Hypertrophy and Strength Gains.” Sports Medicine, 2026;56(2):481-505. PMID: 41343037. https://pubmed.ncbi.nlm.nih.gov/41343037/ ↩ ↩²

35. Gravl. Homepage (“Join over a million lifters getting stronger with Gravl”; “Over 1 million users around the world”) and Help Center, “Gravl on your watch: Apple Watch, Wear OS and Garmin,” updated September 27, 2026 (“The watch needs your phone within reach to start a session”). Accessed October 27, 2026. https://gravl.ai/ and https://gravl.ai/help/gravl-on-your-watch-apple-watch-wear-os-and-garmin ↩ ↩² ↩³

36. Hevy Studios. “Hevy Trainer: Adaptive Strength Programming System.” — “No, Trainer is a Pro feature. However, you can gain full access… for just $2.99/month ($23.99/year or $74.99/lifetime).” Accessed October 27, 2026. https://www.hevyapp.com/features/workout-plan-generator/ ↩ ↩² ↩³