# ADAS专家 vs OBDify

The clearest difference is in-app purchases: ADAS专家 at none against OBDify's 4. ADAS专家 also leads on iOS requirement (12.0 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. OBDify sells 4 in-app purchases, starting at $4.99 per 7 days. ADAS专家 asks for nothing beyond the download.

ADAS专家 ships an update every 3 weeks, OBDify every 5 weeks. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ADAS专家 | OBDify |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Size | 37 MB | 64 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai WanWay Digital Technology Co.,Ltd](https://appshunter.io/developer/1275343765) | [Oleksandr Zhuryk](https://appshunter.io/developer/1892968311) |

## What reviewers say

### ADAS专家

[App page](https://appshunter.io/ios/app/adas/id1528698806)

**Features:** Vision Pro support

**In-app purchases:** none


### OBDify

[App page](https://appshunter.io/ios/app/obdify-obd2-car-scanner/id6762113465)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OBDify Premium | $4.99 | per 7 days |
| OBDify Pro | $9.99 | per month |
| OBDify Premium | $59.99 | per year |
| Lifetime Diagnostics | $19.99 | one-time |


## Frequently asked questions

### Is ADAS专家 free?

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

### Is OBDify free?

OBDify is free to download, with in-app purchases available.

### Do ADAS专家 or OBDify have ads?

Neither ADAS专家 nor OBDify shows ads.

### Which is updated more often, ADAS专家 or OBDify?

ADAS专家 ships an update every 3 weeks, and OBDify every 5 weeks. Most recently, ADAS专家 was updated on October 10, 2026 and OBDify 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.*