# 知屿 vs SANSUI

The clearest difference is in-app purchases: SANSUI at none against 知屿's 6. SANSUI also leads on update cadence (every 4 days vs every 3 weeks) and review sentiment (8% vs 0%). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. 知屿 sells 6 one-off in-app purchases. SANSUI asks for nothing beyond the download.

SANSUI holds the better App Store score, 2.5 against 2.3. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews point the same way: 0% of 知屿's written reviews are positive against 8% of SANSUI's.

知屿 ships an update every 3 weeks, SANSUI every 4 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | 知屿 | SANSUI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/id6497791104/reviews) | **[2.5 (2 ratings)](https://appshunter.io/ios/app/sansui/id6499414959/reviews)** |
| Number of ratings | **3** | 2 |
| Positive reviews | 0.0% of reviews | **8.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 115 MB | 86 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [秋霞 杜](https://appshunter.io/developer/6791664160) | [SANSUI(SHENZHEN) International Electronic Technology Co.,LTD](https://appshunter.io/developer/1743360783) |

## What reviewers say

### 知屿

[App page](https://appshunter.io/ios/app/id6497791104)

This app offers a safe space for users to express emotions, seek professional guidance, and record personal growth. It provides access to professional counselors for support and a digital diary for self-reflection. Users can also anonymously connect with others through a 'message in a bottle' feature.

**Highlights:** Professional counseling sessions, Emotional expression and venting, Personal growth journaling, Anonymous 'message in a bottle' feature, Explore emotional well-being

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 充值得到32个元宝 | $4.99 | one-time |
| 充值得到41元宝 | $6.99 | one-time |
| 充值得到66元宝 | $9.99 | one-time |
| 充值得到109元宝 | $19.99 | one-time |
| 充值得到228元宝 | $39.99 | one-time |
| 充值得到593个元宝 | $99.99 | one-time |


### SANSUI

[App page](https://appshunter.io/ios/app/sansui/id6499414959)

This utility app allows for deep customization of audio settings, including EQ and button configurations. It provides detailed information about connected devices and supports firmware updates for enhanced functionality.

**Highlights:** Custom button settings, Custom EQ settings, Headphone power display, Multiple mode switching, Position search, Firmware update

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 知屿 free?

知屿 is free to download, with in-app purchases available.

### Is SANSUI free?

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

### Which has better reviews, 知屿 or SANSUI?

SANSUI is rated higher. 知屿 averages 2.3 out of 5 from 3 ratings, while SANSUI averages 2.5 from 2 ratings.

### Do 知屿 or SANSUI have ads?

Neither 知屿 nor SANSUI shows ads.

### Which is updated more often, 知屿 or SANSUI?

知屿 ships an update every 3 weeks, and SANSUI every 4 days. Most recently, 知屿 was updated on October 24, 2026 and SANSUI on October 24, 2026.

---

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