# 后湾 vs 咔蓝

The clearest difference is in-app purchases: 咔蓝 at none against 后湾's 3. 咔蓝 also leads on iOS requirement (13.0 vs 15.0). 后湾's advantage is ads (none vs shown) and update cadence (every 2 days vs every 9 days). On price and device support there is nothing between them.

Both are free to download. 后湾 sells 3 in-app purchases, starting at $2.99 per 7 days. 咔蓝 asks for nothing beyond the download.

后湾 ships an update every 2 days, 咔蓝 every 9 days. Both last shipped on October 17, 2026.

## The numbers

| Metric | 后湾 | 咔蓝 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 9 days |
| Size | 110 MB | 101 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Jiangyu Technologies](https://appshunter.io/developer/1657976686) | [南宁忘忧启灵信息科技有限公司](https://appshunter.io/developer/1691827705) |

## 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 |


### 咔蓝

[App page](https://appshunter.io/ios/app/id6761711489)

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

**In-app purchases:** none


## Frequently asked questions

### Is 后湾 free?

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

### Is 咔蓝 free?

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

### Do 后湾 or 咔蓝 have ads?

咔蓝 shows ads; 后湾 does not.

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

后湾 ships an update every 2 days, and 咔蓝 every 9 days. Most recently, 后湾 was updated on October 17, 2026 and 咔蓝 on October 17, 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.*