# BlueDriver OBD2 Scan Tool vs J1939OBD

The clearest difference is in-app purchases: BlueDriver OBD2 Scan Tool at none against J1939OBD's 1. BlueDriver OBD2 Scan Tool also leads on update cadence (fortnightly vs every 41 months). J1939OBD's advantage is iOS requirement (12.1 vs 16.6). On price, ads and device support there is nothing between them.

Both are free to download. J1939OBD sells 1 one-off in-app purchase. BlueDriver OBD2 Scan Tool asks for nothing beyond the download.

BlueDriver OBD2 Scan Tool ships an update fortnightly, J1939OBD every 41 months. The most recent releases landed on October 20, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | BlueDriver OBD2 Scan Tool | J1939OBD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (14K ratings)](https://appshunter.io/ios/app/bluedriver-obd2-scan-tool/id445403397/reviews)** | — |
| Number of ratings | **14K** | — |
| Positive reviews | 57.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 41 months |
| Monetization | Free with in-app purchases | — |
| Size | 273 MB | 14 MB |
| Requires iOS | 16.6 | **12.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lemur Vehicle Monitors](https://appshunter.io/developer/445403400) | [S.Koepge](https://appshunter.io/developer/340731168) |

## 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


### J1939OBD

[App page](https://appshunter.io/ios/app/j1939obd/id1453435912)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get full access for 1939OBD | $3.99 | one-time |


## Frequently asked questions

### Is BlueDriver OBD2 Scan Tool free?

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

### Is J1939OBD free?

J1939OBD is free to download, with in-app purchases available.

### Do BlueDriver OBD2 Scan Tool or J1939OBD have ads?

Neither BlueDriver OBD2 Scan Tool nor J1939OBD shows ads.

### Which is updated more often, BlueDriver OBD2 Scan Tool or J1939OBD?

BlueDriver OBD2 Scan Tool ships an update fortnightly, and J1939OBD every 41 months. Most recently, BlueDriver OBD2 Scan Tool was updated on October 20, 2026 and J1939OBD on September 18, 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.*