# OBD2 Car Scanner vs BM500

The clearest difference is review sentiment: OBD2 Car Scanner at 55% against BM500's 0%. OBD2 Car Scanner also leads on rating (4.6 vs 3.0) and ratings volume (5.1K vs 2). BM500's advantage is in-app purchases (none vs 3) and update cadence (fortnightly vs every 5 weeks). On price, ads and device support there is nothing between them.

Both are free to download. OBD2 Car Scanner sells 3 one-off in-app purchases. BM500 asks for nothing beyond the download.

OBD2 Car Scanner holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: OBD2 Car Scanner has 5.1K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 55% of OBD2 Car Scanner's written reviews are positive against 0% of BM500's.

OBD2 Car Scanner ships an update every 5 weeks, BM500 fortnightly. The most recent releases landed on October 16, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | OBD2 Car Scanner | BM500 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (5.1K ratings)](https://appshunter.io/ios/app/obd2-car-scanner-eobd-facile/id713921569/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/bm500/id1557463189/reviews) |
| Number of ratings | **5.1K** | 2 |
| Positive reviews | **54.6% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 68 MB | 8 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OUTILS OBD FACILE SARL](https://appshunter.io/developer/694586088) | [亮 侯](https://appshunter.io/developer/616725498) |

## What reviewers say

### OBD2 Car Scanner

[App page](https://appshunter.io/ios/app/obd2-car-scanner-eobd-facile/id713921569)

Transform your smartphone into a professional car diagnostic tool. Read and clear engine fault codes, monitor real-time sensor data, and perform advanced diagnostics without a mechanic. Supports a wide range of OBD2 compliant vehicles.

**Highlights:** Read and clear engine fault codes, Monitor real-time sensor data, Turn off check engine light, VIN decoder, Acceleration performance test, Generate PDF diagnostic reports

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Edition | $19.99 | one-time |
| Upgrade to Plus Edition | $20.99 | one-time |
| Plus edition | $39.99 | one-time |

**What reviewers like**

- 👍 Helpful for diagnosing issues
- 🚀 Easy to use and connect
- 💡 Provides useful vehicle data
- 🔍 Able to read and clear error codes

**What reviewers complain about**

- 💰 Expensive for full functionality
- 🔒 Requires paid upgrade to access key features
- 🐛 Connectivity issues and app crashes
- 🚫 Limited functionality in free version

**Reported bugs**

- Unable to connect to some OBD2 adapters
- Incorrect or missing sensor data
- Paid version not functioning as expected

**Requested features**

- Add support for more vehicle makes and models
- Improve user interface and data visualization
- Ability to reset service lights and perform more advanced diagnostics
- Integrate with vehicle GPS for location-based data


### BM500

[App page](https://appshunter.io/ios/app/bm500/id1557463189)

This application connects to Bluetooth battery testers to perform comprehensive battery health checks. Users can easily test battery condition, cranking, and charging systems, with the ability to save and share professional results.

**Highlights:** Bluetooth connectivity to battery testers, Battery condition testing, Cranking system testing, Charging system testing, Save test data, Share professional results

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OBD2 Car Scanner free?

OBD2 Car Scanner is free to download, with in-app purchases available.

### Is BM500 free?

BM500 is free to download, with no in-app purchases.

### Which has better reviews, OBD2 Car Scanner or BM500?

OBD2 Car Scanner is rated higher. OBD2 Car Scanner averages 4.6 out of 5 from 5.1K ratings, while BM500 averages 3.0 from 2 ratings.

### Do OBD2 Car Scanner or BM500 have ads?

Neither OBD2 Car Scanner nor BM500 shows ads.

### Which is updated more often, OBD2 Car Scanner or BM500?

OBD2 Car Scanner ships an update every 5 weeks, and BM500 fortnightly. Most recently, OBD2 Car Scanner was updated on October 16, 2026 and BM500 on September 16, 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.*