# UMER vs sienne

The clearest difference is iOS requirement: sienne at 14.0 against UMER's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

UMER ships an update every 10 months, sienne every 6 months. The most recent releases landed on October 8, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | UMER | sienne |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 6 months** |
| Size | 74 MB | 71 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [(주)유메르컴퍼니](https://appshunter.io/developer/1630097196) | [(주)시엔느](https://appshunter.io/developer/1681238902) |

## What reviewers say

### UMER

[App page](https://appshunter.io/ios/app/umer/id1630096984)

**Features:** Vision Pro support

**In-app purchases:** none


### sienne

[App page](https://appshunter.io/ios/app/sienne/id6447422202)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is UMER free?

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

### Is sienne free?

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

### Do UMER or sienne have ads?

Neither UMER nor sienne shows ads.

### Which is updated more often, UMER or sienne?

UMER ships an update every 10 months, and sienne every 6 months. Most recently, UMER was updated on October 8, 2026 and sienne on September 23, 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.*