Easily calculate your one-rep max (1RM) strength with this app. It supports RPE input and allows you to estimate rep maxes based on your 1RM. Track your progress by saving your 1RM history for different exercises.





249+ iOS apps curated and reviewed
Finding the right one rep max calculator apps can be overwhelming with so many options. We've analyzed 249+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 4.9★ (116) | No | Yes | Oct 2026 | ||
| 2 | Free | 4.5★ (222) | No | Yes | Sep 2026 | ||
| 3 | Free | 4.4★ (183) | Yes | Yes | Oct 2026 | ||
| 4 | Free | 4.4★ (119) | No | Yes | Oct 2026 | ||
| 5 | Free | 4.5★ (11) | No | No | Sep 2026 | ||
| 6 | Free | 5.0★ (3) | No | Yes | Aug 2026 | ||
| 7 | Free | 5.0★ (1) | No | Yes | Aug 2026 | ||
| 8 | $0.99 | 4.5★ (2) | No | No | Oct 2026 |





Easily calculate your one-rep max (1RM) strength with this app. It supports RPE input and allows you to estimate rep maxes based on your 1RM. Track your progress by saving your 1RM history for different exercises.






Estimate your maximum weight lifted for a single repetition. Input your successful lifts and reps to gauge strength, compare progress, and plan future training. Offers advanced features for detailed tracking and analysis.






Safely estimate your maximum lift potential for various strength exercises using scientific formulas. Track your progress visually, set goals, and fine-tune estimates with perceived exertion. Ideal for powerlifters, CrossFit athletes, and strength enthusiasts.