If you lift and you track food, you are running two apps that have never spoken to each other. That is the whole comparison, and whether it matters to you depends on how much of your fitness life is happening outside the gym.
It is worth being straight about this: Hevy is very good at the thing it does. Set entry is fast, the rest timer is where your thumb already is, the history view answers "what did I lift last time" in one glance, and none of it is cluttered with features you did not ask for. For a lifter who wants a clean training log and nothing else, it is one of the best options on the App Store, and Pro is inexpensive.
The social side is a real feature too, not a bolt-on. Following training partners, seeing their sessions, and the leaderboards are all available for free, and for a lot of people that is the thing that keeps them logging. Fitly has nothing equivalent and is not trying to.
Hevy is a training app on purpose. It has no food logging, no calorie or macro tracking, and no plans to be a nutrition app. That is a defensible product decision and it is why the app stays as focused as it does. It also means that if you care about body composition rather than just lifting numbers, Hevy is one half of your setup and something else is the other half.
Fitly is built the other way around: one agent that holds training and nutrition in the same context. In practice that shows up in small moments rather than big ones. You finish a session and it already knows what protein you have left for the day. You tell it your shoulder is bothering you and the next push day is rewritten, without you editing a routine. You say "chicken burrito bowl from Chipotle, extra guac" and it logs the macros without you searching a database.
The other real difference is who writes the program. In Hevy you build your routines, and Hevy Trainer on Pro adds adaptive progression on top of what you built. In Fitly you describe the goal, the equipment you have and the injuries you are working around, and the agent writes the program, then keeps adjusting it as you log.
| Feature | Hevy | Fitly AI |
|---|---|---|
| Workout logging | Excellent. Fast set entry, rest timers, plate calculator, history at a glance. | Full logging plus reps, weight, timed, cardio and carry exercise types. |
| Nutrition tracking | None. Hevy is a training app by design. | Meals by text, voice, photo, barcode or label, with macros logged automatically. |
| Building a program | You build routines yourself; Hevy Trainer adds adaptive progression on Pro. | Describe your goal and equipment and the agent writes the program, then adapts it. |
| Injury and equipment awareness | You account for it manually when writing the routine. | Stored in your profile; every plan and swap respects it without being re-told. |
| Social and leaderboards | A genuine strength. Followers, shared workouts, leaderboards, free. | Not a social app. Share cards only. |
| Price | A genuine free tier with a cap on saved routines, plus a low-cost Pro subscription. Considerably cheaper than Fitly. | $9.99/mo without AI, $24.99/mo with the full agent. No free tier. |
Feature comparison reflects Hevy as of July 2026. We deliberately do not quote exact Hevy prices: subscriptions are sold in-app, vary by region and currency, and change without notice. For current pricing see Hevy's own site. If anything here is out of date, tell us at hello@fitly.chat and we will correct it.
Hevy is much cheaper than Fitly, and it would be dishonest to bury that in a table. Hevy Pro is an inexpensive subscription with a lifetime option; Fitly AI is $24.99 a month with no free tier. Check Hevy's current pricing yourself rather than taking our word for the numbers.
The two are priced against different things. Hevy is priced as a best-in-class single-purpose logger, and it is worth what it charges. Fitly is priced against the stack it is meant to replace, and every message you send runs a real model with real per-user cost. If your setup today is Hevy plus a free tracker and you are happy, Fitly is a hard sell on price alone. If your setup is Hevy Pro plus a paid nutrition app plus a coach or a spreadsheet, the arithmetic looks different.
You only care about lifting. If nutrition is not something you track and do not intend to start, most of what Fitly does is weight you would be carrying for nothing. Hevy is cheaper and its logging interface is better than ours at the specific job of recording sets.
The social features are why you log. Followers, leaderboards and shared workouts keep a lot of people consistent. Fitly has no answer to that, and consistency beats sophistication every time.
You want to write your own programming. Experienced lifters running a specific block often do not want an agent proposing changes. Hevy stays out of the way; Fitly is opinionated by design.
Fitly AI is on iOS and the web. Start with a free trial, and if it is not doing the work for you, cancel from inside the app.
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