# OBD JScan vs BM500

The clearest difference is review sentiment: OBD JScan at 80% against BM500's 0%. OBD JScan also leads on rating (4.7 vs 3.0) and ratings volume (1.3K vs 2). BM500's advantage is in-app purchases (none vs 7). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. OBD JScan sells 6 one-off in-app purchases. BM500 asks for nothing beyond the download.

OBD JScan holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: OBD JScan has 1.3K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 80% of OBD JScan's written reviews are positive against 0% of BM500's.

OBD JScan ships an update every 3 weeks, BM500 fortnightly. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | OBD JScan | BM500 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.3K ratings)](https://appshunter.io/ios/app/obd-jscan/id1445903514/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/bm500/id1557463189/reviews) |
| Number of ratings | **1.3K** | 2 |
| Positive reviews | **79.6% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 403 MB | 8 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Piotr Bialic](https://appshunter.io/developer/960266498) | [亮 侯](https://appshunter.io/developer/616725498) |

## What reviewers say

### OBD JScan

[App page](https://appshunter.io/ios/app/obd-jscan/id1445903514)

This diagnostic application provides in-depth access to vehicle modules, allowing users to read and clear trouble codes, view live sensor data, and access vehicle settings. It supports a wide range of Jeep, Chrysler, and Dodge models, offering powerful customization and diagnostic features.

**Highlights:** Read and clear diagnostic trouble codes, Access live data from all vehicle sensors, View vehicle settings and module information, Supports ABS, transmission, and other modules, Wide compatibility with Jeep, Chrysler, Dodge, Enables features locked by dealers

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| + 1 garage license | $9.99 | one-time |
| 1 VIN license | $20.99 | one-time |
| Add 1 VIN Vehicle Slot | $20.99 | one-time |
| 3 VIN licenses | $54.99 | one-time |
| 5 VIN Licenses | $84.99 | one-time |
| 10 VIN Licenses | $149.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 🔧 Powerful customization options
- 👍 Excellent customer support
- 💡 Useful diagnostic and monitoring features
- 🔓 Enables features otherwise locked by dealer

**What reviewers complain about**

- 🐛 Occasional connectivity issues
- 🔌 Requires additional hardware purchase
- ⚠️ Compatibility issues with newer vehicle models
- 🕰️ Slow performance in certain scenarios

**Reported bugs**

- Inability to save/export diagnostic data
- Inconsistent behavior when changing vehicle settings

**Requested features**

- Expanded vehicle compatibility
- Improved stability and reliability
- Enhanced user interface and guidance
- Integration with other vehicle apps/services


### 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 OBD JScan free?

OBD JScan 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, OBD JScan or BM500?

OBD JScan is rated higher. OBD JScan averages 4.7 out of 5 from 1.3K ratings, while BM500 averages 3.0 from 2 ratings.

### Do OBD JScan or BM500 have ads?

Neither OBD JScan nor BM500 shows ads.

### Which is updated more often, OBD JScan or BM500?

OBD JScan ships an update every 3 weeks, and BM500 fortnightly. Most recently, OBD JScan was updated on October 29, 2026 and BM500 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.*