# BlueDriver OBD2 Scan Tool vs Tread AI

The clearest difference is in-app purchases: BlueDriver OBD2 Scan Tool at none against Tread AI's 2. BlueDriver OBD2 Scan Tool also leads on ratings volume (14K vs 15) and rating (4.6 vs 4.3). Tread AI's advantage is review sentiment (92% vs 57%) and update cadence (every 5 days vs fortnightly). On price, ads and device support there is nothing between them.

Both are free to download. Tread AI sells 2 in-app purchases, starting at $3.00 per month. BlueDriver OBD2 Scan Tool asks for nothing beyond the download.

BlueDriver OBD2 Scan Tool holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: BlueDriver OBD2 Scan Tool has 14K ratings behind it against 15, so its average is the more settled of the two. Written reviews complicate that: 57% of BlueDriver OBD2 Scan Tool's written reviews are positive against 92% of Tread AI's, so the app with the better star average is not the one people write more warmly about.

BlueDriver OBD2 Scan Tool ships an update fortnightly, Tread AI every 5 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | BlueDriver OBD2 Scan Tool | Tread AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (14K ratings)](https://appshunter.io/ios/app/bluedriver-obd2-scan-tool/id445403397/reviews)** | [4.3 (15 ratings)](https://appshunter.io/ios/app/tread-ai-tire-tread-depth/id6755405651/reviews) |
| Number of ratings | **14K** | 15 |
| Positive reviews | 57.2% of reviews | **91.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 273 MB | 26 MB |
| Requires iOS | 16.6 | **13.4** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Lemur Vehicle Monitors](https://appshunter.io/developer/445403400) | [Majid Sadri](https://appshunter.io/developer/1819096776) |

## What reviewers say

### BlueDriver OBD2 Scan Tool

[App page](https://appshunter.io/ios/app/bluedriver-obd2-scan-tool/id445403397)

This app turns your smartphone into a powerful OBD2 scan tool. It allows you to read and clear trouble codes, view live data, and generate detailed repair reports for your vehicle. Understand your car's issues and make informed repair decisions.

**Highlights:** Read and clear trouble codes (Check Engine, ABS, etc.), Generate professional-grade Repair Reports, Access Mode 6 and smog readiness data, View live data with interactive graphing, Wireless Bluetooth scanning, Likely fixes explained in plain language

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Excellent diagnostic capabilities
- 💰 Great value for money
- 🔍 Detailed fault code information
- 📚 Helpful repair suggestions

**What reviewers complain about**

- 🐛 Occasional Bluetooth connectivity issues
- ⚠️ Limited support for some vehicle makes/models
- 🚫 Cannot read odometer information
- 🚫 Lack of advanced features for professional mechanics
- 🚫 No support for European vehicle VINs

**Reported bugs**

- Occasional app crashes
- Failure to detect vehicle faults in some cases
- Inability to update firmware on certain devices

**Requested features**

- Add support for more vehicle makes and models
- Improve Bluetooth stability and connectivity
- Implement odometer reading functionality
- Expand diagnostic capabilities to include more advanced features
- Add support for European vehicle VINs


### Tread AI

[App page](https://appshunter.io/ios/app/tread-ai-tire-tread-depth/id6755405651)

Instantly analyze your tire health using your phone's camera. Get advanced tread-depth and tire-condition reports in seconds, no tools or appointments needed. Stay safer on the road with smart ML-powered tire inspection.

**Highlights:** ML-powered tire inspection, Phone camera analysis, Instant tread-depth reports, Tire condition analysis, No tools required, No appointments needed

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $3.00 | per month |
| Pro Annual | $33.00 | per year |


## Frequently asked questions

### Is BlueDriver OBD2 Scan Tool free?

BlueDriver OBD2 Scan Tool is free to download, with no in-app purchases.

### Is Tread AI free?

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

### Which has better reviews, BlueDriver OBD2 Scan Tool or Tread AI?

BlueDriver OBD2 Scan Tool is rated higher. BlueDriver OBD2 Scan Tool averages 4.6 out of 5 from 14K ratings, while Tread AI averages 4.3 from 15 ratings.

### Do BlueDriver OBD2 Scan Tool or Tread AI have ads?

Neither BlueDriver OBD2 Scan Tool nor Tread AI shows ads.

### Which is updated more often, BlueDriver OBD2 Scan Tool or Tread AI?

BlueDriver OBD2 Scan Tool ships an update fortnightly, and Tread AI every 5 days. Most recently, BlueDriver OBD2 Scan Tool was updated on October 24, 2026 and Tread AI on October 24, 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.*