# 智物联信 vs TrainTT

The clearest difference is update cadence: TrainTT at every 3 days against 智物联信's every 9 days. TrainTT also leads on iOS requirement (12.0 vs 15.0). 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.

智物联信 ships an update every 9 days, TrainTT every 3 days. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 智物联信 | TrainTT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 3 days** |
| Size | 73 MB | 49 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [天津中新智冠信息技术有限公司](https://appshunter.io/developer/1356029613) | [Qian Yun Network Service Co., Ltd.](https://appshunter.io/developer/1567568557) |

## What reviewers say

### 智物联信

[App page](https://appshunter.io/ios/app/id1356029614)

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

**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 智物联信 free?

智物联信 is free to download, with no in-app purchases.

### Is TrainTT free?

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

### Do 智物联信 or TrainTT have ads?

Neither 智物联信 nor TrainTT shows ads.

### Which is updated more often, 智物联信 or TrainTT?

智物联信 ships an update every 9 days, and TrainTT every 3 days. Most recently, 智物联信 was updated on October 24, 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.*