# 行车DVR vs 成长足迹教师端

The clearest difference is update cadence: 成长足迹教师端 at every 3 weeks against 行车DVR's every 15 months. 成长足迹教师端 also leads on iOS requirement (9.0 vs 11.0). 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.

行车DVR ships an update every 15 months, 成长足迹教师端 every 3 weeks. The most recent releases landed on September 17, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | 行车DVR | 成长足迹教师端 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 3 weeks** |
| Size | 30 MB | 71 MB |
| Requires iOS | 11.0 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [隆彪 雷](https://appshunter.io/developer/981420461) | [Nanjing Zhibao Education Technology Co., Ltd.](https://appshunter.io/developer/1581547423) |

## What reviewers say

### 行车DVR

[App page](https://appshunter.io/ios/app/dvr/id1448095196)

**In-app purchases:** none


### 成长足迹教师端

[App page](https://appshunter.io/ios/app/id1531559467)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 行车DVR free?

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

### Is 成长足迹教师端 free?

成长足迹教师端 is free to download, with no in-app purchases.

### Do 行车DVR or 成长足迹教师端 have ads?

Neither 行车DVR nor 成长足迹教师端 shows ads.

### Which is updated more often, 行车DVR or 成长足迹教师端?

行车DVR ships an update every 15 months, and 成长足迹教师端 every 3 weeks. Most recently, 行车DVR was updated on September 17, 2026 and 成长足迹教师端 on September 12, 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.*