# RK Performance vs Happy Brain

The clearest difference is update cadence: Happy Brain at every 2 days against RK Performance's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RK Performance ships an update every 3 weeks, Happy Brain every 2 days. The most recent releases landed on October 12, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | RK Performance | Happy Brain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rk-performance/id6468893028/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Free | — |
| Size | 170 MB | 3 MB |
| Requires iOS | **15.5** | 15.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [5019126 ONTARIO LTD.](https://appshunter.io/developer/1710821417) | [SHELTER TECHNOLOGY PRIVATE LIMITED](https://appshunter.io/developer/1894678724) |

## What reviewers say

### RK Performance

[App page](https://appshunter.io/ios/app/rk-performance/id6468893028)

This app provides personalized workout programs and tracks your fitness journey, including workouts, nutrition, and habits. Connect with your coach and a supportive community to achieve your health goals and monitor progress with detailed measurements and photos.

**Highlights:** Access and track workout programs, Follow exercise and workout videos, Track meals and make better food choices, Monitor daily habits and set goals, Message your coach in real-time, Join digital communities for motivation, Track body measurements and progress photos, Connect with wearable devices and health apps

**Features:** Apple Wallet, Apple Watch app

**In-app purchases:** none


### Happy Brain

[App page](https://appshunter.io/ios/app/happy-brain/id6762560948)

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

**In-app purchases:** none


## Frequently asked questions

### Is RK Performance free?

RK Performance is free to download, with no in-app purchases.

### Is Happy Brain free?

Happy Brain is free to download, with no in-app purchases.

### Do RK Performance or Happy Brain have ads?

Neither RK Performance nor Happy Brain shows ads.

### Which is updated more often, RK Performance or Happy Brain?

RK Performance ships an update every 3 weeks, and Happy Brain every 2 days. Most recently, RK Performance was updated on October 12, 2026 and Happy Brain on October 6, 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.*