# Dr. Prius / Dr. Hybrid vs BM500

The clearest difference is rating: Dr. Prius / Dr. Hybrid at 3.6 against BM500's 3.0. Dr. Prius / Dr. Hybrid also leads on review sentiment (40% vs 0%) and ratings volume (15 vs 2). BM500's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Dr. Prius / Dr. Hybrid sells 2 one-off in-app purchases. BM500 asks for nothing beyond the download.

Dr. Prius / Dr. Hybrid holds the better App Store score, 3.6 against 3.0. That said, the two scores are not equally well evidenced: Dr. Prius / Dr. Hybrid has 15 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 40% of Dr. Prius / Dr. Hybrid's written reviews are positive against 0% of BM500's.

Dr. Prius / Dr. Hybrid ships an update every 9 days, BM500 fortnightly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Dr. Prius / Dr. Hybrid | BM500 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (15 ratings)](https://appshunter.io/ios/app/dr-prius-dr-hybrid/id1321750222/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/bm500/id1557463189/reviews) |
| Number of ratings | **15** | 2 |
| Positive reviews | **39.7% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Fortnightly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 13 MB | 8 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Big Wheel Tech Inc](https://appshunter.io/developer/1321750221) | [亮 侯](https://appshunter.io/developer/616725498) |

## What reviewers say

### Dr. Prius / Dr. Hybrid

[App page](https://appshunter.io/ios/app/dr-prius-dr-hybrid/id1321750222)

This app transforms your mobile device into a professional diagnostic tool for Toyota/Lexus hybrid vehicles. It allows for real-time monitoring, life expectancy testing, and full battery diagnostics, helping to identify and resolve issues quickly. Users can also print certificates of battery health and customize vehicle settings.

**Highlights:** Real-time battery monitor, Hybrid battery life expectancy test, Full battery diagnostic tests, Printable battery health certificate, Read and reset error codes, Customize vehicle beeps and fan speed

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic package | $13.99 | one-time |
| Shop special | $32.99 | one-time |

**What reviewers like**

- 🚀 Helpful for checking battery health
- 👍 Easy to use and connect
- 🔧 Useful for diagnosing and fixing issues
- 💡 Allows disabling annoying beeps
- 🔋 Reveals battery degradation information

**What reviewers complain about**

- 🐛 App crashes frequently
- 🔌 Connectivity issues with some OBD2 adapters
- 💰 Expensive for limited functionality
- 🤔 Inconsistent battery life readings
- 🔍 Unclear what the paid features offer

**Reported bugs**

- App crashes during battery life expectancy test
- Paid version not working as expected
- Connectivity issues with certain OBD2 adapters
- Incorrect battery health readings in some cases

**Requested features**

- Add support for more vehicle models
- Provide more detailed battery health information
- Improve stability and reliability of the app
- Offer clearer guidance on compatible OBD2 adapters
- Provide more transparency on paid features


### 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 Dr. Prius / Dr. Hybrid free?

Dr. Prius / Dr. Hybrid 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, Dr. Prius / Dr. Hybrid or BM500?

Dr. Prius / Dr. Hybrid is rated higher. Dr. Prius / Dr. Hybrid averages 3.6 out of 5 from 15 ratings, while BM500 averages 3.0 from 2 ratings.

### Do Dr. Prius / Dr. Hybrid or BM500 have ads?

Neither Dr. Prius / Dr. Hybrid nor BM500 shows ads.

### Which is updated more often, Dr. Prius / Dr. Hybrid or BM500?

Dr. Prius / Dr. Hybrid ships an update every 9 days, and BM500 fortnightly. Most recently, Dr. Prius / Dr. Hybrid was updated on November 2, 2026 and BM500 on November 3, 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.*