# ONE RM

> Strength training calculator for estimating maximum lifts and repetitions. (iPhone/iPad app by ASMDevelopment.)

- Source: https://appshunter.io/ios/app/one-rm/id545195270 (this page in markdown: same URL + `.md`)
- Developer: [ASMDevelopment](https://appshunter.io/developer/543389510)
- Category: Sports, Lifestyle
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 5.1 · 0 MB
- Languages: American English
- Released: 2012-08-02
- Data updated: 2026-09-06
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/one-rm/id545195270/reviews.md

## What is ONE RM?

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Avec "1 RM", déterminer votre maxi pour tous vos exercices de musculation.

Un maxi*, communément appelé 1 RM correspond à la charge maximum théorique que vous pouvez utiliser pour un exercice donné. Il se calcul selon différentes formule. 

Nous avons fait le choix de trois de ces formules, les équations de Epley, de Brzyk et de Lander. Le résultat principal donné (à titre indicatif) correspond à la moyenne des résultats de ces formule. L'application permet d'afficher un résultat spécifique selon les méthodes d'entraînement de chacun.

Une fenêtre de statistiques permet de déterminer le nombre de répétitions (3, 6, 8, 10 ou 12 répétitions) réalisables avec les charges adéquates en fonction du maxi de référence.

De nombreuses fonctionnalités sont en cours d'élaborations.

*Toutes les charges calculées avec notre application sont données à titre indicatif. La pratique du sport avec des charges libres doit être encadrée par des professionnels diplômés. L'utilisation de charges lourdes doit être effectuée avec un partenaire afin d'éviter tout risque de blessure.

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## Key features

- Calculate maximum theoretical weight (1RM)
- Uses Epley, Brzycki, and Lander formulas
- Average results from multiple formulas
- Determine achievable repetitions for given weights
- View statistics for different rep ranges

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/one-rm/id545195270/reviews.md

### 5/5 — Excellent

*2015-03-05*

I have downloaded all the 1rm apps and this is the best one. It has the best interface and is the fastest to use, and it's free

## Frequently asked questions about ONE RM

### How does ONE RM calculate my maximum lift?

ONE RM calculates your maximum theoretical weight (1RM) using established formulas like Epley, Brzycki, and Lander. It then provides an average of these results for a more comprehensive estimate.

### Can ONE RM tell me how many reps I can do with a certain weight?

Yes, ONE RM includes a statistics window that allows you to determine the number of repetitions you can achieve with specific weights based on your calculated 1RM.

### What formulas does ONE RM use?

ONE RM utilizes three common formulas for 1RM calculation: Epley, Brzycki, and Lander. The app presents the average of these results as its primary estimation.

### Is ONE RM available on Android devices?

Based on the provided information, ONE RM is currently supported on iPhone and iPod devices. Support for Android devices is not specified.

### How often is ONE RM updated?

The last update for ONE RM was on August 14, 2012, with version 1.0.1. The app was initially released on August 2, 2012, indicating infrequent updates.

### Does ONE RM have ads?

No, ONE RM does not contain advertisements. The app is free to download and use without any ad interruptions.

### What is the age rating for ONE RM?

ONE RM has an age rating of 4+, making it suitable for users of all ages. This rating suggests no mature content is present within the application.

### Is the 1RM calculated by ONE RM always accurate?

The application states that all calculated loads are indicative. It emphasizes that practicing with free weights should be supervised by qualified professionals and heavy lifting requires a spotter to prevent injury.

## Version history (last 2 releases)

### 1.0.1 — 2012-08-14

Correction de bugs mineurs

### 1.0 — 2012-08-02

No release notes.

## More apps by ASMDevelopment

- [TVA HD](https://appshunter.io/ios/app/tva-hd/id543935778)

All apps by ASMDevelopment: https://appshunter.io/developer/543389510

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-06.*