# 汽车大师技师版 vs OBD故障码助手

The clearest difference is iOS requirement: OBD故障码助手 at 7.1 against 汽车大师技师版's 11.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

汽车大师技师版 ships an update monthly, OBD故障码助手 every 2 months. The most recent releases landed on September 15, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 汽车大师技师版 | OBD故障码助手 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 83 MB | 24 MB |
| Requires iOS | 11.0 | **7.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [北京百车宝科技有限公司](https://appshunter.io/developer/904143799) | [深圳市爱夫卡科技有限公司](https://appshunter.io/developer/980516490) |

## What reviewers say

### 汽车大师技师版

[App page](https://appshunter.io/ios/app/id960984836)

**Features:** macOS Compatibility

**In-app purchases:** none


### OBD故障码助手

[App page](https://appshunter.io/ios/app/obd/id980516491)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 汽车大师技师版 free?

汽车大师技师版 is free to download, with no in-app purchases.

### Is OBD故障码助手 free?

OBD故障码助手 is free to download, with no in-app purchases.

### Do 汽车大师技师版 or OBD故障码助手 have ads?

Neither 汽车大师技师版 nor OBD故障码助手 shows ads.

### Which is updated more often, 汽车大师技师版 or OBD故障码助手?

汽车大师技师版 ships an update monthly, and OBD故障码助手 every 2 months. Most recently, 汽车大师技师版 was updated on September 15, 2026 and OBD故障码助手 on October 6, 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.*