OneRM - Workout Logger
Juan Castillo Health & Fitness iPhoneiPadiPod touch
OneRM - Workout Logger is a free Health & Fitness app for iPhone and iPad by Juan Castillo. Rated 5.0/5 from 2 ratings. Requires iOS 16.1.
- Rating
- 5.0
- 2 ratings
- Price
- Free
- on the App Store
- Size
- 37 MB
- Age 4+
- Updated
- Apr 28
- 2026 · v1.1.5
Screenshots
About OneRM - Workout Logger
I built OneRM because I was tired of bloated fitness apps, hidden paywalls, and complicated interfaces. I just wanted a fast, clean way to log my lifts and track my progress without the distractions. So I made OneRM for myself and now everyone can also use it for free. OneRM is a workout tracker for weightlifting, strength training, and bodybuilding. Everything is included. No subscriptions, no ads, and no tracking. What you get: Workouts • Predict your next set based on past data • Automatic rest timer with local notifications • Quick logging with smart set suggestions • See estimated 1RM, reps, sets, volume, and more • Completed workout summaries with detailed stats • Full history of every workout and exercise • Live timer support for Lock Screen and Dynamic Island • Clean, color-coded interface Exercises • Add, edit, and delete any exercise • Input RPE for better effort tracking • Auto-calculate 1 rep max for easy planning • Organize exercises by muscle groups Statistics • Progress graphs over time • Workout summaries and performance breakdowns Tools • Plate calculator • Dark mode • Metric and imperial units Privacy and Data • All data is stored locally on your phone • Optional iCloud backup if you want it • No accounts, no ads, no tracking • Your data stays yours OneRM is the app I use for every single workout. If you’re looking for something simple, fast, and effective, give it a try. It’s completely free. Nothing locked. No strings attached.
What’s new
Version 1.1.5 · Updated April 28, 2026
Bugfixes to live activity timer
App privacy
The developer, Juan Castillo, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to OneRM - Workout Logger
Looking for apps like OneRM - Workout Logger? Here are 6 similar apps on the App Store. The highest rated is Evolve Workout Tracker (5.0/5), and all 6 are free to download.
-
HYM Score
4.0
-
Shred - Get Lean
-
Evolve Workout Tracker
5.0
-
Strength Maxing
-
GymCalc Max – 1RM
-
oneRM calculator(1RM)
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| OneRM - Workout Logger | 5.0 / 5 (2 ratings) | Free | April 28, 2026 | |
| HYM Score | 4.0 / 5 (3) | Free | Mar 18, 2025 | Compare |
| Shred - Get Lean | – | Free | Apr 15, 2026 | Compare |
| Evolve Workout Tracker | 5.0 / 5 (1) | Free | Jul 29, 2026 | Compare |
| Strength Maxing | – | Free | Jun 3, 2026 | Compare |
| GymCalc Max – 1RM | – | Free | Mar 10, 2026 | Compare |
| oneRM calculator(1RM) | – | Free | May 19, 2026 | Compare |