# Stay Young vs UniMastery

The clearest difference is update cadence: UniMastery at every 2 months against Stay Young's every 6 months. 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.

Stay Young ships an update every 6 months, UniMastery every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Stay Young | UniMastery |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (12 ratings)](https://appshunter.io/ios/app/stay-young/id6572998791/reviews)** | — |
| Number of ratings | **12** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 71 MB | 46 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [LIBERTAS LTD](https://appshunter.io/developer/1759225479) | [Unimastery Ltd.](https://appshunter.io/developer/1778500433) |

## What reviewers say

### Stay Young

[App page](https://appshunter.io/ios/app/stay-young/id6572998791)

Embark on a sustainable weight loss journey with guided courses, a supportive community, and expert coaching. Overcome diet fatigue and disappointment with personalized challenges and live events designed for lasting results.

**Highlights:** Weight loss courses, Supportive community, Weekly challenges, Live events, Professional classes, Personal coach

**Features:** macOS Compatibility

**In-app purchases:** none


### UniMastery

[App page](https://appshunter.io/ios/app/unimastery/id6738735338)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stay Young free?

Stay Young is free to download, with no in-app purchases.

### Is UniMastery free?

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

### Do Stay Young or UniMastery have ads?

Neither Stay Young nor UniMastery shows ads.

### Which is updated more often, Stay Young or UniMastery?

Stay Young ships an update every 6 months, and UniMastery every 2 months. Most recently, Stay Young was updated on October 24, 2026 and UniMastery on October 25, 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.*