212+ iOS apps curated and reviewed
The best 1rm calculator apps on iPhone average 4.6★ across 212+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.9★ (86) | No | Yes | Jul 2026 |
| 2 |  | Free | 4.5★ (217) | No | Yes | May 2026 |
| 3 |  | Free | 4.4★ (170) | Yes | Yes | Jul 2026 |
| 4 |  | Free | 4.8★ (8) | No | Yes | Jul 2026 |
| 5 |  | Free | 4.9★ (11K) | Yes | Yes | Jul 2026 |
| 6 |  | Free | 4.0★ (6) | No | No | Jul 2026 |
| 7 |  | Free | — | Yes | No | May 2026 |
| 8 |  | Free | 4.4★ (111) | No | Yes | Jul 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.
This app helps you determine your one-repetition maximum (1RM) for various strength exercises. It uses several well-known formulas to calculate your maximum lift capacity, aiding in tracking training effectiveness and progress.
This app simplifies tracking your progress on the 5/3/1 strength training program. It calculates and displays weights, reps, and sets based on your one-rep max, allowing you to easily plan and execute your workouts. Rounding options help match available gym plates.
Calculate your one rep max (1RM) and explore potential rep maxes at various intensities. Supports both pounds and kilograms, with an intuitive interface and offline functionality for seamless strength training tracking.
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.
Estimate your one rep max weight for various lifts using popular formulas. Track your progress over time with a built-in logbook. Offers custom lift creation and extended repetition calculations with a premium upgrade.
This app helps you plan and calculate percentage-based workouts. It includes a one-rep max estimator and customizable weight settings for a personalized training experience. Easily track your sets and reps without manual calculations.
Easily calculate and track your one-rep max (1RM) for any lift. Estimate your maximum weight safely without testing, and monitor your progress over time with detailed charts. Improve your training with expert articles.
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.
This app provides personalized workout plans and meal suggestions to help you achieve your health and fitness goals. It offers hundreds of exercises with video guides, progress tracking, and nutrition planning for various diets.
This app offers a user-friendly calculator experience with a focus on ease of use. It features a live voice input, an ergonomic layout with large keys, and a usage history for quick reference. Results can be easily copied or emailed.
This app offers a straightforward calculation experience, focusing on essential functions without unnecessary complexity. It includes basic arithmetic, percentage calculations, and advanced functions like square root. Users can customize the appearance with multiple color schemes and utilize features like result copying and split-screen multitasking on iPad.
This app provides a comprehensive graphing and scientific calculator experience on your mobile device. It allows you to graph multiple functions, solve equations, perform statistical analysis, and work with matrices, all with a familiar interface. Ideal for students and anyone needing advanced calculation capabilities on the go.
This free calculator app offers a fast, ad-free experience with a visual input and calculation history. Customize your experience with various keyboard sounds and colors, and access advanced scientific functions when needed.
This app offers both basic and advanced scientific calculations with an intuitive interface designed for tablets and phones. It includes features like currency conversion, calculation history, and the ability to share results. An optional premium membership removes ads and provides enhanced support.