246+ iOS apps curated and reviewed
The best 1rm max calculator apps on iPhone average 4.7★ across 246+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.2★ (22) | No | Yes | Oct 2026 | |
| 2 |  | Free | — | Yes | No | Oct 2026 | |
| 3 |  | Free | 4.4★ (185) | Yes | Yes | Oct 2026 | |
| 4 |  | Free | — | Yes | Yes | Oct 2026 | |
| 5 |  | Free | 4.5★ (222) | No | Yes | Oct 2026 | |
| 6 |  | Free | 4.7★ (7) | No | Yes | Oct 2026 | |
| 7 |  | Free | 4.9★ (128) | No | Yes | Oct 2026 | |
| 8 |  | Free | 5.0★ (1) | No | Yes | Aug 2026 |
Instantly calculate your one-rep max (1RM) for bench press, squat, and deadlift using 7 scientific formulas. Track your progress with intuitive charts and calendar records. Ideal for athletes and lifters aiming for more scientific and effective training.
Calculate your maximum weight for a single repetition of any exercise. This tool helps estimate your strength for key lifts, aiding in training program design and progress tracking. Prioritize safety and effective programming by understanding your one-rep max.
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.
