My 1 Rep Max vs Kagiru
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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Know your strength. Track your progress. Keep getting stronger. My 1 Rep Max gives you a fast, simple way to estimate your one-rep max and keep a record of the lifts that matter to you. Choose your lift, enter the weight and reps, and instantly see your estimated 1RM along with training percentages. Choose from several of the most popular 1 Rep Max formulas so you can calculate your results the way you prefer. Save your lifts to your lift log and build a history of your training over time. Whether you're chasing a new bench press PR, building your squat, improving your deadlift, or simply trying to get stronger, My 1 Rep Max helps you see where you are and where you're headed. GO FURTHER WITH MY 1 REP MAX PREMIUM Premium gives you more control over your training and more insight into your progress: • See your progress over time with interactive charts • Create your own custom lifts • Calculate your 1RM using more than 10 repetitions • Unlock all Premium features with one purchase — no subscription Simple when you need a quick calculation. Powerful enough to become part of your training. A NOTE ABOUT SAFETY One-rep max calculations are estimates, and accuracy can vary based on training experience, technique, fatigue, individual physiology, and other factors. Attempting a true one-rep maximum can involve significant risk. Use appropriate safety equipment, have a qualified spotter when necessary, and never attempt a weight you do not feel prepared to lift safely.
Kagiru
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Kagiru is your strength-training companion. Log every set, rep, and weight, track your progress, and turn each session into real motivation. Build your own routines, train at your own pace, and let Kagiru keep score for you. Every workout earns XP, raises your level, protects your streak, and unlocks badges. Seeing your progress has never felt this good. FEATURES - Log sets, reps, and weights quickly and easily - Create and organize your own workout routines - Personal records (PRs) detected automatically - XP, levels, streaks, and badges to keep you hooked - Progress charts to visualize your evolution - Rest timer between sets - Reminders so you never lose your streak - Widgets and Live Activity to follow your session from the Home Screen - Optional Apple Health sync - Available in English and Spanish PRIVACY FIRST Your workout data is stored entirely on your device. No accounts, no servers. Your progress is yours. Start today, lift more, and push your limits with Kagiru.
Screenshots
Verdict
The clearest difference is in-app purchases: Kagiru at none against My 1 Rep Max's 1. Kagiru also leads on update cadence (every 5 days vs every 11 days). My 1 Rep Max's advantage is ads (none vs shown) and iOS requirement (18.6 vs 26.1). On price and device support 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. Kagiru asks for nothing beyond the download.
My 1 Rep Max ships an update every 11 days, Kagiru every 5 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | My 1 Rep Max | Kagiru |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (119 ratings) — better | — |
| Positive reviews | 57.1% of reviews | — |
| Number of ratings | 119 — better | — |
| Update frequency | Every 11 days | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone |
| Requires iOS | 18.6 — better | 26.1 |
| Further details — not scored | ||
| Size | 21 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | James T. Constant | HORACIO GARZA |
In-app purchases
My 1 Rep Max
- My 1 Rep Max Premium$7.99
Kagiru
No in-app purchases







