# O聊 vs TrainTT

The clearest difference is update cadence: TrainTT at every 3 days against O聊's weekly. O聊's advantage is iOS requirement (9.0 vs 12.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

O聊 ships an update weekly, TrainTT every 3 days. Both last shipped on October 1, 2026.

## The numbers

| Metric | O聊 | TrainTT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Size | 59 MB | 49 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Hangzhou boyue Wenda Information Technology Co., Ltd](https://appshunter.io/developer/1507742120) | [Qian Yun Network Service Co., Ltd.](https://appshunter.io/developer/1567568557) |

## What reviewers say

### O聊

[App page](https://appshunter.io/ios/app/o/id1513534376)

**Features:** macOS Compatibility

**In-app purchases:** none


### TrainTT

[App page](https://appshunter.io/ios/app/traintt/id1597479690)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is O聊 free?

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

### Is TrainTT free?

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

### Do O聊 or TrainTT have ads?

Neither O聊 nor TrainTT shows ads.

### Which is updated more often, O聊 or TrainTT?

O聊 ships an update weekly, and TrainTT every 3 days. Most recently, O聊 was updated on October 1, 2026 and TrainTT on October 1, 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.*