Strong app alternative Gym Commitment vs Strong

Both are plain gym logs: routines, sets, a rest timer, graphs. Strong stops there, on purpose. Gym Commitment adds a plan from your own ChatGPT, Claude or Gemini and a body figure of the muscles you've trained.

  • No account to make
  • iPhone and Android
  • Works without an AI too

“simple yet powerful”App Store review, India

Checked on both apps' store listings.

Play mode in Gym Commitment: one set on its own screen, the weight and reps big, and last time's numbers under them. Sample data.

Quick verdict

Two plain logs. One has an AI on call.

Go with Gym Commitment if

  • You'd like your own AI to write the plan, and fix it when your week changes.
  • Making an account for a gym log feels like overkill.
  • You want to see skipped muscles on a body figure. Usually it's legs.

Go with Strong if

  • A log and nothing else is exactly what you want, with routines you write yourself.
  • Your iPhone stays in the locker while the Apple Watch logs the workout.
  • You lean on a plate calculator and a warm-up calculator at the bar.

Reviews

What lifters say about Gym Commitment

  • Great little app with lots of room for future potential.  Simple to understand without gimmicky features like all the other apps. Responsive team

    App Store · USA · 1 Oct 2026

  • Was useful to log in progress and have a good visual of which body muscle groups are being targeted/trained.

    App Store · Singapore · 29 Sep 2026

  • This app is exactly what I’ve been wanting; it has custom made workouts, tracking for sets and reps, weight tracking, & shows how Intensely you worked each muscle each day and week! Highly recommend

    App Store · USA · 28 Sep 2026

Side by side

Gym Commitment and Strong, feature by feature.

What each app does, from each app's own store listing, read on 5 November 2026.
FeatureGym CommitmentStrong
Where your plan comes fromYour own ChatGPT, Claude or Gemini, or a routine you build or pickThe routines you add yourself
Warm-up, drop and failure sets, supersetsYesYes
Rest timerStarts when you tick a set, also on the lock screenAn automatic countdown between sets
ProgressEvery lift on a graph, with personal recordsGraphs for volume and 1RM, with personal records
Progress photosYes, kept with the session they came fromProgress pictures and notes on your workouts
How to do an exerciseForm clips, when you have a connectionInstructions with animated videos
Your data outA CSV of every session and setA CSV of all your data, by Notes or email
AccountNone neededSign in to back up with Cloud Sync
WatchApple Watch, with your iPhone nearbyApple Watch, with or without your iPhone
PhonesiPhone and AndroidiPhone and Android
Languages611

Log your next workout in Gym Commitment.

No account to make, and the AI part is optional.

What Gym Commitment does differently

The same log, with a plan on call.

A plan Claude sent, open in Gym Commitment: Upper Lower Strength, over four training days. Sample data.
  1. Bring your own AI

    Linking takes one short code from the app, pasted into ChatGPT, Claude or Gemini. Before writing a single exercise, it asks which days you train and what your gym has, one question per message. Then the plan shows up on your phone. You won't be copying it out of a chat window into your notes app.

  2. Change it in one sentence

    Thursday got busy? Tell your AI “make Thursday shorter” and the new version replaces the old one in the app. You can also leave it a note on a lift, like “No machine here”. It reads the note with your next change.

  3. Ready-made routines too

    Don't want an AI involved? There are ready-made routines for a full gym, for dumbbells only, for machines only and for home with no kit at all. Or build your own split, day by day.

  4. The muscles you skipped

    A body figure lights up the sets each muscle got, for a routine or for the week so far. The weekly, monthly and yearly reports show which body parts you skipped. Usually it's legs.

  5. No account

    There's no sign-up screen. You open the app and log a set. If you ever want your data somewhere else, every session and set exports as a CSV.

  6. Small things at the rack

    The weight column tells you if a number means one dumbbell or the bar plus plates. Someone on your machine? Swap the exercise. Skip it today and it's still in the plan next week.

See what your AI can do in Gym Commitment

What Strong does better

Where Strong is ahead.

  • Nothing but the log

    Strong is built to stay out of your way. Your routines, your sets, a timer and your numbers, with no distractions.

  • The watch on its own

    Strong's Apple Watch app logs a workout with or without your iPhone. Gym Commitment's watch app needs the iPhone nearby.

  • Calculators at the bar

    A plate calculator for when the weights get heavy, and a warm-up calculator that tells you what to warm up with.

  • Body measurements and backup

    Strong keeps your body weight and other measurements alongside Apple Health, and its Cloud Sync keeps a backup of everything.

  • Years of lifters behind it

    More than 100,000 App Store ratings, averaging 4.9, and it comes in 11 languages. Gym Commitment is the new one here.

Moving over from Strong

Your first week in Gym Commitment.

  1. Download Gym Commitment from the App Store or Google Play and skip the sign-up, because there isn't one.

  2. Bring your routine. Tell your AI the routine you run in Strong (or paste it in) and ask for it as a Gym Commitment plan. Or build it day by day in the app.

  3. Log your first workout. From the second one on, every set opens with what you did last time.

  4. Your Strong history stays put, and you can export it there as a CSV anytime.

How to connect your AI, step by step

Questions

Before you switch.

Is Gym Commitment a good Strong alternative?

Yes, if you like a plain log and want a plan from your own AI on top of it. If you log on an Apple Watch without your iPhone, though, Strong does that and Gym Commitment doesn't.

Can an AI write my plan in Strong?

Strong's App Store listing describes a log for routines you add yourself, and it doesn't mention an AI. In Gym Commitment, your ChatGPT, Claude or Gemini writes the plan and sends it to the app. See how it works.

Can I bring my Strong routines?

Yes. Tell your AI the routine, or paste it in, and ask for it as a plan in Gym Commitment. Your Strong history stays in Strong.

Does Gym Commitment work on Android and Apple Watch?

Yes. Android phones get the same app as iPhones, minus the watch part. With an Apple Watch you can run the whole workout from your wrist (start, tick sets, fix a weight, finish) as long as your iPhone is within reach. The Apple Watch page has every screen.

Do I need a paid AI?

For some assistants, yes, and a few aren't available in every country. The setup page has the list. You can still log every set without one.

Where these facts come from

We read these pages on 5 November 2026. Apps change, so look at them too before you choose. The facts about Gym Commitment are from its App Store listing, version 2.0.2.

Strong is a trademark of Strong Fitness PTE Ltd. ChatGPT is a trademark of OpenAI, Claude of Anthropic, and Gemini of Google. Gym Commitment is not affiliated with any of them.

iPhone and Android

Your next leg day is a good test.

There's no account to set up first.

The body figure on the Progress tab in Gym Commitment, with the muscles trained this week shaded. Sample data.