# 永豐餘生技 vs 曙 MUSE FEATHER

The clearest difference is update cadence: 永豐餘生技 at every 2 months against 曙 MUSE FEATHER's every 15 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.

永豐餘生技 ships an update every 2 months, 曙 MUSE FEATHER every 15 months. The most recent releases landed on October 12, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | 永豐餘生技 | 曙 MUSE FEATHER |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 15 months |
| Size | 83 MB | 17 MB |
| Requires iOS | 12.0 | **11.0.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [永豐餘生技](https://appshunter.io/developer/1531070337) | [Flaps Technology Corporation](https://appshunter.io/developer/1156409606) |

## What reviewers say

### 永豐餘生技

[App page](https://appshunter.io/ios/app/id1531070335)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### 曙 MUSE FEATHER

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 永豐餘生技 free?

永豐餘生技 is free to download, with no in-app purchases.

### Is 曙 MUSE FEATHER free?

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

### Do 永豐餘生技 or 曙 MUSE FEATHER have ads?

Neither 永豐餘生技 nor 曙 MUSE FEATHER shows ads.

### Which is updated more often, 永豐餘生技 or 曙 MUSE FEATHER?

永豐餘生技 ships an update every 2 months, and 曙 MUSE FEATHER every 15 months. Most recently, 永豐餘生技 was updated on October 12, 2026 and 曙 MUSE FEATHER on October 2, 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.*