# 后湾 vs 犬岛

The clearest difference is iOS requirement: 犬岛 at 13.0 against 后湾's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 后湾 sells 3 in-app purchases, starting at $2.99 per 7 days and 犬岛 sells 10 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

后湾 ships an update every 2 days, 犬岛 every 3 days. The most recent releases landed on October 17, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | 后湾 | 犬岛 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (30 ratings)](https://appshunter.io/ios/app/id6450510581/reviews)** |
| Number of ratings | — | **30** |
| Positive reviews | — | 11.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 days |
| Monetization | — | Free with in-app purchases |
| Size | 110 MB | 143 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Jiangyu Technologies](https://appshunter.io/developer/1657976686) | [Shanghai Quandao Co., Ltd.](https://appshunter.io/developer/1370250847) |

## What reviewers say

### 后湾

[App page](https://appshunter.io/ios/app/id1663608485)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1周 | $2.99 | per 7 days |
| 1个月 | $7.99 | per month |
| 3个月 | $19.99 | per 3 months |


### 犬岛

[App page](https://appshunter.io/ios/app/id6450510581)

This app is a life journaling tool that supports rich text formatting, multi-level tagging, and various organizational methods like calendars and timelines. It fosters a community for deep communication and self-expression, connecting users through shared thoughts and experiences. AI features assist in organizing content, tracking emotions, and matching users.

**Highlights:** Rich text formatting, Multi-level tagging, Calendar and timeline views, Public sharing of entries, AI-driven content organization, User matching based on inner qualities, Emotional tracking

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1周 | $2.99 | per 7 days |
| 1周 | $3.99 | per 7 days |
| 1周 | $4.99 | per 7 days |
| 1个月 | $7.99 | per month |
| 3个月 | $19.99 | per 3 months |
| 1个月 | $19.99 | per month |
| 6个月 | $24.99 | per 6 months |
| 1年 | $29.99 | per year |
| 3个月 | $29.99 | per 3 months |
| 6个月 | $49.99 | per 6 months |


## Frequently asked questions

### Is 后湾 free?

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

### Is 犬岛 free?

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

### Do 后湾 or 犬岛 have ads?

Neither 后湾 nor 犬岛 shows ads.

### Which is updated more often, 后湾 or 犬岛?

后湾 ships an update every 2 days, and 犬岛 every 3 days. Most recently, 后湾 was updated on October 17, 2026 and 犬岛 on October 5, 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.*