# 爱尤克 vs Feel Sync

The clearest difference is update cadence: 爱尤克 at every 3 weeks against Feel Sync's every 2 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.

爱尤克 ships an update every 3 weeks, Feel Sync every 2 months. The most recent releases landed on November 12, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 爱尤克 | Feel Sync |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | — | Free |
| Size | 102 MB | 165 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [成城 王](https://appshunter.io/developer/1624058633) | [CASIO COMPUTER CO., LTD.](https://appshunter.io/developer/456569836) |

## What reviewers say

### 爱尤克

[App page](https://appshunter.io/ios/app/ai/id6502157308)

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases:** none


### Feel Sync

[App page](https://appshunter.io/ios/app/feel-sync/id6752929886)

This music app enhances keyboard playing by syncing your performance with built-in or imported songs. It offers real-time harmonic feedback and lyric display for an immersive musical experience, even for beginners. Enjoy a curated selection of tracks or play along to your own audio files.

**Highlights:** Syncs with keyboard for real-time playing, Includes 70 built-in popular songs, Import and play along with local audio files, Lyric display for singing along, Intuitive and easy-to-use interface

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

**In-app purchases:** none


## Frequently asked questions

### Is 爱尤克 free?

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

### Is Feel Sync free?

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

### Do 爱尤克 or Feel Sync have ads?

Neither 爱尤克 nor Feel Sync shows ads.

### Which is updated more often, 爱尤克 or Feel Sync?

爱尤克 ships an update every 3 weeks, and Feel Sync every 2 months. Most recently, 爱尤克 was updated on November 12, 2026 and Feel Sync on November 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*