
Best Count Calories App in 2025 for iOS According to Science
Discover the best calorie counter app for iOS according to science. We break down the science of long-term adherence so you can choose a tool you won't quit.
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If you have been looking for a workout tracker app, you have probably narrowed it down to two names: Hevy and Strong. Both are excellent. Both have loyal followings. And on the surface, they look almost identical.
I have used both for extended periods — Strong for over two years, then Hevy after making the switch. This comparison covers what actually matters after months of daily use, not just a feature checklist from a spec sheet.
This article is for people who already train consistently and want to know which workout tracker app is worth their time (and possibly their money). If you are also looking for nutrition tracking alongside your workouts, I have a section for that at the end.
Whether you searched Hevy vs Strong or Strong vs Hevy, you are looking for the same answer — this comparison covers both apps in full, in either order.
| Feature | Hevy | Strong |
|---|---|---|
| Free tier | ✓ Full-featured | ✓ Limited routines |
| Price (premium) | ~$10/month or lifetime | ~$10/month or one-time |
| Platforms | iOS, Android, Web | iOS, Android, Web |
| Apple Watch | ✓ Generally reliable | ✓ Sometimes inconsistent |
| WearOS (Android smartwatch) | ✓ | ✗ |
| Social / community features | ✓ Follow friends, feed | ✗ |
| Exercise library | Large, with images | Large, clean |
| Body heatmap / muscle tracking | ✓ | ✗ |
| Different rest timers (warmup vs work) | ✗ | ✓ |
| Workout notes on templates | ✗ (only on logged sessions) | ✓ |
| Import from the other app | ✓ Import from Strong | ✗ |
| Nutrition tracking | ✗ | ✗ |
Hevy launched in 2020 and has grown rapidly, largely because it offered a genuinely free tier when Strong was moving features behind a paywall. Its design is clean, the onboarding is fast, and it has a few features that differentiate it meaningfully from Strong.
Strong has been around since 2014 and is the more veteran option. Its reputation is built on polish and reliability. The interface is slightly more compact than Hevy's, which experienced lifters who want fast logging tend to prefer.
The honest answer: if you are an intermediate or advanced lifter who already has a solid program, both apps will serve you well. The differences are real but not dramatic. Try both — both have free tiers — and keep whichever feels better to use after a week.
Here is the gap that neither Hevy nor Strong fills: nutrition tracking.
Both apps are pure workout trackers. They have no calorie counting, no macro targets, no meal logging. If you want to manage your diet alongside your training — which research consistently shows is the bigger driver of body composition changes — you need a second app. For most people that means MyFitnessPal, Cronometer, or MacroFactor running alongside Hevy or Strong.
That two-app setup works, but it is friction. Two separate experiences, two separate subscriptions, data that never talks to each other.
If you would rather have both in one place, PonteFuerteAI is the option worth looking at. It handles workout tracking with progressive overload (same core functionality as Hevy or Strong), adds AI-generated training programs if you want them, and integrates calorie and macro tracking using AI photo logging. One app, one log, no subscription required.
It is not a direct replacement if social features or Strong's rest timer granularity are dealbreakers for you. But if the reason you are reading a Hevy vs Strong comparison is that you want a complete fitness tracking system — workouts and nutrition — PonteFuerteAI is built exactly for that use case.
If you want a broader list beyond Strong, see our full guide to the best Hevy alternatives in 2026, including AI planners, free program apps, bodybuilding trackers, and Apple Watch options.
Download PonteFuerteAI free on iOS or Android.
Between Hevy vs Strong, neither is objectively better — they are different tools with different strengths.
Hevy wins on social features, Android Watch support, body heatmap, and active development pace. Strong wins on UI polish, rest timer flexibility, and template notes.
Both are free to start. Try them. Keep the one you actually enjoy opening before every session — because the best workout tracker app is the one you consistently use.
If you need workout tracking and nutrition in one place, the conversation changes entirely. That is where PonteFuerteAI fills the gap that Hevy and Strong both leave open.
Neither is objectively better — they serve different priorities. Hevy is the stronger choice if you want a generous free tier, social features (friends, public routines), a body heatmap, and Android Watch support. Strong is the stronger choice if you prioritize UI polish, granular rest timers, and detailed template notes. If you train consistently with a set program, try both free tiers for a week and keep whichever you actually enjoy opening before every session.
Yes, both apps are free to download with meaningful free tiers. Hevy's free tier is significantly more generous — most core features, including unlimited routines and the social feed, are available without paying. Strong's free tier limits you to 3 active routines. Both charge approximately $10/month for premium. Both also offer a one-time lifetime purchase, which is the better value for long-term users.
The main differences: Hevy has a social layer (friends, following, public routines), a body heatmap that shows which muscles you've trained, and supports both Apple Watch and Android (WearOS) smartwatches. Strong has a more refined UI, separate rest timers for warmup and working sets, and persistent notes on individual exercises inside templates. Both are pure workout loggers — neither includes nutrition tracking or AI-generated plans.
For pure workout logging, Hevy and Strong are genuinely among the best options available. The gap that both leave open is nutrition: neither tracks calories, macros, or meals. If you want workout tracking and nutrition in a single app, PonteFuerteAI covers both — strength logging with progressive overload tracking, AI-generated training programs, and calorie/macro tracking via AI photo logging. It's free on iOS and Android.
Yes. Hevy supports importing workout history directly from Strong. The reverse is not true — switching from Hevy back to Strong means starting fresh with no history import.

Written by
Alberto MenéndezPersonal trainer · Software developer · Founder of PonteFuerteAI
Over 10 years of training experience across three continents. Certified personal trainer who coached clients in Spain, India, and Japan before building PonteFuerteAI — the all-in-one AI fitness app he always wished existed.
Read full story →Download PonteFuerte AI today and join thousands who are already achieving their goals with the help of our artificial intelligence.
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Discover the best calorie counter app for iOS according to science. We break down the science of long-term adherence so you can choose a tool you won't quit.
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