My 1 Rep Max vs RM REP MAX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
My 1 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.
- 1 Rep Max calculator
- Logbook for progress tracking
- Multiple popular formulas
- Custom lift creation (Premium)
- Extended repetition calculations (Premium)
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My 1 Rep Max is a 1 Rep Max calculator and log book. Use any of the most popular 1 Rep Max formulas to estimate your 1 Rep Max weight and keep a log to see your progress over time. Simply select a lift type, enter a weight, and a number of repetitions (up to 10), and tap the Calculate button to see your 1 Rep Max. With My 1 Rep Max Premium, you can create your own custom lifts and use more than 10 repetitions to perform calculations. A Note About Safety: One rep maximum calculators are used to estimate the maximum amount you can lift. The degree of accuracy can vary significantly depending on your experience with weight training as well as your muscular composition. Most one rep maximum calculators are designed for experienced strength trainers so, if you are inexperienced, you may find your actual one rep maximum is much lower because your body is not accustomed to the stress of lifting heavy weight. Because it can be dangerous to attempt to lift your estimated maximum, always have a spotter with you. Seriously. My 1 Rep Max will never ask you for a rating or review. However, if you'd like to take the time to rate or review it, you can do so from the Settings screen.
RM REP MAX
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REP MAX is a strength training app built for lifters who are focused on one goal: setting new personal records. Track your workouts, monitor your progress, manage rest periods, log recovery data, and compare physique photos—all in one place. REP MAX helps you stay consistent, measure improvement, and push beyond your limits. Features Workout Tracking Log weight, reps, sets, and notes with a simple and efficient interface. Personal Record (PR) Tracking Automatically track and display your best lifts for each exercise. PR Progress Charts Visualize your strength progress over time and see how your records continue to improve. Rest Timer Stay focused between sets with a built-in rest timer and notifications. Condition Tracking Record sleep hours, fatigue levels, and overall condition to better understand your performance. Body Progress Photos Save and compare front, side, and back photos to monitor physical changes over time. Training Volume Analytics Track your recent training volume with easy-to-read charts and statistics. Perfect For Strength athletes Bodybuilders Powerlifters Gym enthusiasts Anyone serious about tracking progress Whether you're chasing a new bench press PR, building muscle, or simply staying consistent, REP MAX provides the tools you need to monitor your journey and stay motivated. Train smarter.
Screenshots
Verdict
The clearest difference is ads: My 1 Rep Max at none against RM REP MAX's shown. RM REP MAX's advantage is update cadence (daily vs every 3 weeks). On price, in-app purchases, device support and iOS requirement 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. My 1 Rep Max sells 1 one-off in-app purchase and RM REP MAX sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
My 1 Rep Max ships an update every 3 weeks, RM REP MAX daily. The most recent releases landed on September 21, 2026 and September 10, 2026 respectively.
| Parameter | My 1 Rep Max | RM REP MAX |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (118 ratings) — better | — |
| Positive reviews | 53.8% of reviews | — |
| Number of ratings | 118 — better | — |
| Update frequency | Every 3 weeks | Daily — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.6 | 17.6 — better |
| Further details — not scored | ||
| Size | 8 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | James T. Constant | matsumae ryo |
In-app purchases
My 1 Rep Max
- My 1 Rep Max Premium$0.99
RM REP MAX
- Remove Ads$0.99








