# 私密圈成人社 vs 心流島

The clearest difference is in-app purchases: 私密圈成人社 at none against 心流島's 2. 私密圈成人社 also leads on update cadence (every 4 months vs every 8 months) and iOS requirement (12.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. 心流島 sells 2 in-app purchases, starting at $0.99 per month. 私密圈成人社 asks for nothing beyond the download.

私密圈成人社 ships an update every 4 months, 心流島 every 8 months. The most recent releases landed on October 21, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | 私密圈成人社 | 心流島 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 8 months |
| Size | 50 MB | 10 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Imena Network Technology Co., Ltd.](https://appshunter.io/developer/1641869317) | [SY YUAN CHEN](https://appshunter.io/developer/1836289668) |

## What reviewers say

### 私密圈成人社

[App page](https://appshunter.io/ios/app/id6642675805)

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

**In-app purchases:** none


### 心流島

[App page](https://appshunter.io/ios/app/5/id6756066211)

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月方案 | $0.99 | per month |
| 年方案 | $9.99 | per year |


## Frequently asked questions

### Is 私密圈成人社 free?

私密圈成人社 is free to download, with no in-app purchases.

### Is 心流島 free?

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

### Do 私密圈成人社 or 心流島 have ads?

Neither 私密圈成人社 nor 心流島 shows ads.

### Which is updated more often, 私密圈成人社 or 心流島?

私密圈成人社 ships an update every 4 months, and 心流島 every 8 months. Most recently, 私密圈成人社 was updated on October 21, 2026 and 心流島 on October 11, 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.*