# 爱计算 vs TrainTT

The clearest difference is update cadence: TrainTT at every 3 days against 爱计算's every 3 months. 爱计算's advantage is iOS requirement (9.3 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.

爱计算 ships an update every 3 months, TrainTT every 3 days. The most recent releases landed on October 17, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 爱计算 | TrainTT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Size | 33 MB | 49 MB |
| Requires iOS | **9.3** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Jiangsu Xugong Information Technology Co., Ltd.](https://appshunter.io/developer/1065721255) | [Qian Yun Network Service Co., Ltd.](https://appshunter.io/developer/1567568557) |

## What reviewers say

### 爱计算

[App page](https://appshunter.io/ios/app/id1211537648)

**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 爱计算 free?

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

### Is TrainTT free?

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

### Do 爱计算 or TrainTT have ads?

Neither 爱计算 nor TrainTT shows ads.

### Which is updated more often, 爱计算 or TrainTT?

爱计算 ships an update every 3 months, and TrainTT every 3 days. Most recently, 爱计算 was updated on October 17, 2026 and TrainTT on October 27, 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.*