# The One Rep Max vs Simple One

The clearest difference is review sentiment: The One Rep Max at 100% against Simple One's 50%. The One Rep Max also leads on price (Free vs $0.99) and rating (5.0 vs 4.5). On ratings volume, ads and in-app purchases there is nothing between them.

The One Rep Max is free to download; Simple One costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

The One Rep Max holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 100% of The One Rep Max's written reviews are positive against 50% of Simple One's.

The One Rep Max ships an update every 10 days, Simple One every 13 months. Both last shipped on October 20, 2026.

## The numbers

| Metric | The One Rep Max | Simple One |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/the-one-rep-max/id697865606/reviews)** | [4.5 (2 ratings)](https://appshunter.io/ios/app/simple-one-rep-max-calculator/id1191599672/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 13 months |
| Monetization | **Free** | Paid |
| Size | 29 MB | 2 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Jonah Witcig](https://appshunter.io/developer/1081267495) | [Above AS](https://appshunter.io/developer/894620418) |

## What reviewers say

### The One Rep Max

[App page](https://appshunter.io/ios/app/the-one-rep-max/id697865606)

Estimate your maximum weightlifting capacity with this tool. Track your progress and safely push your limits. Ideal for strength training enthusiasts.

**Highlights:** One Rep Max estimation, Progress charting, Safe training guidance, Weightlifting focus

**Features:** macOS Compatibility

**In-app purchases:** none


### Simple One

[App page](https://appshunter.io/ios/app/simple-one-rep-max-calculator/id1191599672)

This app helps you accurately determine your one-rep max (1RM) using multiple proven formulas. It provides reliable estimates to help you choose the right weights for your training, ensuring safer and more effective strength progression.

**Highlights:** Accurate one-rep max estimates, Multiple proven calculation formulas, Determine training weights, Fast and simple interface, Distraction-free design

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is The One Rep Max free?

The One Rep Max is free to download, with no in-app purchases.

### Is Simple One free?

Simple One costs $0.99, with no in-app purchases.

### Which has better reviews, The One Rep Max or Simple One?

The One Rep Max is rated higher. The One Rep Max averages 5.0 out of 5 from 1 ratings, while Simple One averages 4.5 from 2 ratings.

### Do The One Rep Max or Simple One have ads?

Neither The One Rep Max nor Simple One shows ads.

### Which is updated more often, The One Rep Max or Simple One?

The One Rep Max ships an update every 10 days, and Simple One every 13 months. Most recently, The One Rep Max was updated on October 20, 2026 and Simple One on October 20, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*