# 曙 MUSE FEATHER vs ×FM

The clearest difference is update cadence: ×FM at every 4 months against 曙 MUSE FEATHER's every 15 months. 曙 MUSE FEATHER's advantage is iOS requirement (11.0.0 vs 17.0). 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.

曙 MUSE FEATHER ships an update every 15 months, ×FM every 4 months. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | 曙 MUSE FEATHER | ×FM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 4 months** |
| Size | 17 MB | 184 MB |
| Requires iOS | **11.0.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Flaps Technology Corporation](https://appshunter.io/developer/1156409606) | [陞訊數據科技股份有限公司(陞泰集團)](https://appshunter.io/developer/1525343667) |

## What reviewers say

### 曙 MUSE FEATHER

[App page](https://appshunter.io/ios/app/muse-feather/id1663740176)

**Features:** macOS Compatibility

**In-app purchases:** none


### ×FM

[App page](https://appshunter.io/ios/app/fm/id6737763972)

**In-app purchases:** none


## Frequently asked questions

### Is 曙 MUSE FEATHER free?

曙 MUSE FEATHER is free to download, with no in-app purchases.

### Is ×FM free?

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

### Do 曙 MUSE FEATHER or ×FM have ads?

Neither 曙 MUSE FEATHER nor ×FM shows ads.

### Which is updated more often, 曙 MUSE FEATHER or ×FM?

曙 MUSE FEATHER ships an update every 15 months, and ×FM every 4 months. Most recently, 曙 MUSE FEATHER was updated on October 2, 2026 and ×FM on October 1, 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.*