# 交易辅助系统 vs U车记

The clearest difference is update cadence: U车记 at every 10 days against 交易辅助系统's every 4 weeks. 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.

交易辅助系统 ships an update every 4 weeks, U车记 every 10 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | 交易辅助系统 | U车记 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 10 days** |
| Size | 43 MB | 58 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Cheyuan Network Technology Co., Ltd.](https://appshunter.io/developer/1080284717) | [上海瞾扬汽车服务有限公司](https://appshunter.io/developer/1335876763) |

## What reviewers say

### 交易辅助系统

[App page](https://appshunter.io/ios/app/id1499819099)

**Features:** macOS Compatibility

**In-app purchases:** none


### U车记

[App page](https://appshunter.io/ios/app/u/id1585630817)

**In-app purchases:** none


## Frequently asked questions

### Is 交易辅助系统 free?

交易辅助系统 is free to download, with no in-app purchases.

### Is U车记 free?

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

### Do 交易辅助系统 or U车记 have ads?

Neither 交易辅助系统 nor U车记 shows ads.

### Which is updated more often, 交易辅助系统 or U车记?

交易辅助系统 ships an update every 4 weeks, and U车记 every 10 days. Most recently, 交易辅助系统 was updated on October 25, 2026 and U车记 on October 25, 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.*