Body Hack vs BuiltDiff
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Body Hack
Easily monitor your fitness journey and stay motivated with this app. It helps you track your progress and maintain accountability during every exercise session.
- Workout progress tracking
- Accountability features
- Fitness motivation
- Exercise session monitoring
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Body Hack makes it easy to track your progress and hold yourself accountable through every workout.
BuiltDiff
Log your weightlifting sets and reps with a clean, distraction-free interface. Visualize your progress with charts and personalize the app's appearance. Enjoy offline functionality and a sign-up-free experience for efficient workouts.
- Log lifts, sets, and reps
- Create custom workout routines
- Offline functionality
- Sign-up-free experience
- Visualize progress with charts
- Personalize app appearance
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Track your lifts, sets, and reps and watch your strength soar! Enjoy a clean and simple design that makes navigation a breeze. Focus on your workout without any distractions, making your lifting sessions efficient and effective. Features: - watchOS companion app - Tailor your own workout routines - No internet connection needed - Sign up-free experience - Convenient keyboard add-ons for efficient logging of weights and reps - Permanent recording of all your lifts - Visualize your lifting progression through charts - Select your preferred color and personalize the app to make it uniquely yours
Screenshots
Verdict
The clearest difference is update cadence: BuiltDiff at every 2 weeks against Body Hack's every 2 months. BuiltDiff also leads on iOS requirement (17.0 vs 26.0). On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Body Hack against 5.0 for BuiltDiff. Both are backed by a comparable volume of ratings — 3 and 2 respectively.
Body Hack ships an update every 2 months, BuiltDiff every 2 weeks. The most recent releases landed on October 3, 2026 and September 17, 2026 respectively.
| Parameter | Body Hack | BuiltDiff |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | 2 |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Requires iOS | 26.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | David Chambers | Timmy Nguyen |
Customer experience
Body Hack
BuiltDiff
In-app purchases
Body Hack
No in-app purchases
BuiltDiff
No in-app purchases
