# BlueDriver OBD2 Scan Tool vs TuneBoss ECU

The clearest difference is rating: BlueDriver OBD2 Scan Tool at 4.6 against TuneBoss ECU's 3.5. BlueDriver OBD2 Scan Tool also leads on ratings volume (14K vs 2) and review sentiment (58% vs 41%). TuneBoss ECU's advantage is monetization model (free vs free with in-app purchases). 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.

BlueDriver OBD2 Scan Tool holds the better App Store score, 4.6 against 3.5. That said, the two scores are not equally well evidenced: BlueDriver OBD2 Scan Tool has 14K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 58% of BlueDriver OBD2 Scan Tool's written reviews are positive against 41% of TuneBoss ECU's.

BlueDriver OBD2 Scan Tool ships an update fortnightly, TuneBoss ECU every 2 weeks. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | BlueDriver OBD2 Scan Tool | TuneBoss ECU |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (14K ratings)](https://appshunter.io/ios/app/bluedriver-obd2-scan-tool/id445403397/reviews)** | [3.5 (2 ratings)](https://appshunter.io/ios/app/tuneboss-ecu/id1593810669/reviews) |
| Number of ratings | **14K** | 2 |
| Positive reviews | **58.4% of reviews** | 40.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 273 MB | 66 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lemur Vehicle Monitors](https://appshunter.io/developer/445403400) | [FSR Technology](https://appshunter.io/developer/1593810671) |

## 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


### TuneBoss ECU

[App page](https://appshunter.io/ios/app/tuneboss-ecu/id1593810669)

This application is for advanced users and requires a specific TuneBoss ECU unit (sold separately). It is designed for use with authorized tuning centers and comes with a disclaimer for use at your own risk.

**Highlights:** Requires TuneBoss ECU unit, For advanced users, Support for authorized tuning centers, Use at own risk disclaimer

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

**In-app purchases:** none


## Frequently asked questions

### Is BlueDriver OBD2 Scan Tool free?

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

### Is TuneBoss ECU free?

TuneBoss ECU is free to download, with no in-app purchases.

### Which has better reviews, BlueDriver OBD2 Scan Tool or TuneBoss ECU?

BlueDriver OBD2 Scan Tool is rated higher. BlueDriver OBD2 Scan Tool averages 4.6 out of 5 from 14K ratings, while TuneBoss ECU averages 3.5 from 2 ratings.

### Do BlueDriver OBD2 Scan Tool or TuneBoss ECU have ads?

Neither BlueDriver OBD2 Scan Tool nor TuneBoss ECU shows ads.

### Which is updated more often, BlueDriver OBD2 Scan Tool or TuneBoss ECU?

BlueDriver OBD2 Scan Tool ships an update fortnightly, and TuneBoss ECU every 2 weeks. Most recently, BlueDriver OBD2 Scan Tool was updated on November 1, 2026 and TuneBoss ECU 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.*