# Um Yang vs CompoundRx

The clearest difference is update cadence: Um Yang at every 3 weeks against CompoundRx's every 4 months. CompoundRx's advantage is iOS requirement (15.1 vs 18.0). 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.

Um Yang ships an update every 3 weeks, CompoundRx every 4 months. The most recent releases landed on October 5, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Um Yang | CompoundRx |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/um-yang/id1382538411/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free | — |
| Size | 25 MB | 27 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [deeje LLC](https://appshunter.io/developer/328085364) | [Noblesville Low Cost Pharmacy](https://appshunter.io/developer/1790773710) |

## What reviewers say

### Um Yang

[App page](https://appshunter.io/ios/app/um-yang/id1382538411)

Track your martial arts progress, log training sessions, and set practice goals. Access study resources, news, and connect with friends. Designed for World Tang Soo Do Association members.

**Highlights:** Track ranks, tournaments, and certificates, Log training, practice, and study time, Set and track monthly practice goals, Integrate with Health apps for calorie tracking, Access rank-appropriate study resources and videos, View studio and regional news and events

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

**In-app purchases:** none


### CompoundRx

[App page](https://appshunter.io/ios/app/compoundrx/id6740602388)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Um Yang free?

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

### Is CompoundRx free?

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

### Do Um Yang or CompoundRx have ads?

Neither Um Yang nor CompoundRx shows ads.

### Which is updated more often, Um Yang or CompoundRx?

Um Yang ships an update every 3 weeks, and CompoundRx every 4 months. Most recently, Um Yang was updated on October 5, 2026 and CompoundRx on October 8, 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.*