# RepZero vs GymRx

The clearest difference is iOS requirement: GymRx at 15.1 against RepZero's 26.0. On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. RepZero sells 2 in-app purchases, starting at $1.99 per month and GymRx sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for RepZero against 5.0 for GymRx. Both are backed by a comparable volume of ratings — 3 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

RepZero ships an update every 10 days, GymRx every 3 weeks. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | RepZero | GymRx |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/repzero-weight-lifting-log/id6752782417/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/gymrx-workout-tracker/id6759118621/reviews) |
| Number of ratings | 3 | **5** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Monetization | Freemium | Freemium |
| Size | 154 MB | 68 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Dark Matter AI Labs LLC](https://appshunter.io/developer/1828240281) | [Garrett Coughlin](https://appshunter.io/developer/1787930627) |

## What reviewers say

### RepZero

[App page](https://appshunter.io/ios/app/repzero-weight-lifting-log/id6752782417)

This app helps you track your weightlifting progress with detailed logging and an AI coach. It provides insights into your performance, personal records, and recovery, all while syncing seamlessly with Apple Watch and Health.

**Highlights:** Detailed set logging with rest timers, Plate calculator for barbells, Apple Watch integration for wrist tracking, AI coach for training advice, Progress visualization and personal records, Customizable workout programs, Muscle recovery insights

**Features:** macOS Compatibility, Apple Watch app, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RepZero Pro Monthly | $1.99 | per month |
| RepZero Pro Yearly | $19.99 | per year |


### GymRx

[App page](https://appshunter.io/ios/app/gymrx-workout-tracker/id6759118621)

This app helps serious lifters train smarter by logging exercises, sets, reps, and weight. It offers an AI coach for real-time suggestions, a comprehensive exercise library with videos, and detailed progress tracking to help you hit new personal records.

**Highlights:** Log exercises, sets, reps, weight, and RIR, AI coach for real-time weight and rep suggestions, 264 exercise library with video demonstrations, Automatic personal record detection and analytics, Syncs with Apple HealthKit, Import from other popular workout apps, Offline-first functionality

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GymRx Premium | $3.99 | per month |
| Cascade Fitness Bundle | $6.99 | per month |
| GymRx Premium | $39.99 | per year |
| Cascade Fitness Bundle | $49.99 | per year |


## Frequently asked questions

### Is RepZero free?

RepZero is free to download, with in-app purchases available.

### Is GymRx free?

GymRx is free to download, with in-app purchases available.

### Which has better reviews, RepZero or GymRx?

RepZero and GymRx are both rated 5.0 out of 5 on the App Store, from 3 and 5 ratings respectively.

### Do RepZero or GymRx have ads?

Neither RepZero nor GymRx shows ads.

### Which is updated more often, RepZero or GymRx?

RepZero ships an update every 10 days, and GymRx every 3 weeks. Most recently, RepZero was updated on November 8, 2026 and GymRx on November 5, 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.*