# BrainOpen vs 陌聊漂流瓶

The clearest difference is in-app purchases: 陌聊漂流瓶 at none against BrainOpen's 1. 陌聊漂流瓶 also leads on update cadence (every 5 weeks vs every 18 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. BrainOpen sells 1 in-app purchase, starting at $3.99 per month. 陌聊漂流瓶 asks for nothing beyond the download.

BrainOpen ships an update every 18 months, 陌聊漂流瓶 every 5 weeks. The most recent releases landed on October 25, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | BrainOpen | 陌聊漂流瓶 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 5 weeks** |
| Size | 113 MB | 72 MB |
| Requires iOS | 13.0 | 13 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [鞯 赵](https://appshunter.io/developer/1567856103) | [俊昱 武](https://appshunter.io/developer/1741007358) |

## What reviewers say

### BrainOpen

[App page](https://appshunter.io/ios/app/brainopen/id1624322578)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP Monthly Card-Unlimited Chat | $3.99 | per month |


### 陌聊漂流瓶

[App page](https://appshunter.io/ios/app/id6758548050)

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

**In-app purchases:** none


## Frequently asked questions

### Is BrainOpen free?

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

### Is 陌聊漂流瓶 free?

陌聊漂流瓶 is free to download, with no in-app purchases.

### Do BrainOpen or 陌聊漂流瓶 have ads?

Neither BrainOpen nor 陌聊漂流瓶 shows ads.

### Which is updated more often, BrainOpen or 陌聊漂流瓶?

BrainOpen ships an update every 18 months, and 陌聊漂流瓶 every 5 weeks. Most recently, BrainOpen was updated on October 25, 2026 and 陌聊漂流瓶 on October 9, 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.*