# 心知岛 vs WorryWall

The clearest difference is in-app purchases: WorryWall at none against 心知岛's 10. WorryWall also leads on device support. On price and iOS requirement there is nothing between them.

Both are free to download. 心知岛 sells 10 one-off in-app purchases. WorryWall asks for nothing beyond the download.

## The numbers

| Metric | 心知岛 | WorryWall |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | — | No |
| Update frequency | — | Every 6 months |
| Size | 113 MB | 59 MB |
| Requires iOS | **9.0** | 10.0 |
| Devices | — | **iPhone, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Guangdong Yi Nianxin Xinli Network Technology Co., Ltd.](https://appshunter.io/developer/1538394638) | [建云 董](https://appshunter.io/developer/1530211788) |

## What reviewers say

### 心知岛

[App page](https://appshunter.io/ios/app/id1538397066)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6金币 | $0.99 | one-time |
| 心知岛18金币 | $2.99 | one-time |
| 心知岛68金币 | $9.99 | one-time |
| 心知岛88金币 | $12.99 | one-time |
| 心知岛1108金币 | $15.99 | one-time |
| 心知岛128金币 | $19.99 | one-time |
| 388金币 | $59.99 | one-time |
| 698金币 | $109.99 | one-time |
| 1248金币 | $189.99 | one-time |
| 1648金币 | $249.99 | one-time |


### WorryWall

[App page](https://appshunter.io/ios/app/worrywall/id1540971312)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 心知岛 free?

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

### Is WorryWall free?

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

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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.*