# Mini OBDII vs YMOBD

The clearest difference is rating: Mini OBDII at 3.4 against YMOBD's 2.9. Mini OBDII also leads on in-app purchases (none vs 4) and iOS requirement (11 vs 15.0). YMOBD's advantage is ratings volume (86 vs 5). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. YMOBD sells 4 one-off in-app purchases. Mini OBDII asks for nothing beyond the download.

Mini OBDII holds the better App Store score, 3.4 against 2.9. That said, the two scores are not equally well evidenced: YMOBD has 86 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 38% of Mini OBDII's written reviews are positive against 34% of YMOBD's.

Mini OBDII ships an update every 3 weeks, YMOBD every 5 weeks. The most recent releases landed on October 6, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Mini OBDII | YMOBD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (5 ratings)](https://appshunter.io/ios/app/mini-obdii/id1530755839/reviews)** | [2.9 (86 ratings)](https://appshunter.io/ios/app/ymobd/id1627949735/reviews) |
| Number of ratings | 5 | **86** |
| Positive reviews | **37.5% of reviews** | 34.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 33 MB | 49 MB |
| Requires iOS | **11** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Chaoyue Technology Development Co.,Ltd](https://appshunter.io/developer/1223781320) | [shenzhen yuming](https://appshunter.io/developer/1432795415) |

## What reviewers say

### Mini OBDII

[App page](https://appshunter.io/ios/app/mini-obdii/id1530755839)

This app connects to your vehicle via Bluetooth or WiFi to perform diagnostics and monitor driving. It reads and clears fault codes, analyzes performance, and tracks your travel data. Supports multiple languages and high-speed data transmission.

**Highlights:** Fault code reading and clearing, Instrument panel monitoring, Performance testing, Travel analysis, High-speed data transmission, Multi-language support

**Features:** macOS Compatibility

**In-app purchases:** none


### YMOBD

[App page](https://appshunter.io/ios/app/ymobd/id1627949735)

This tool connects to your car's OBD adapter via Bluetooth to collect real-time engine data, read fault codes, and provide solutions. It also records driving data, analyzes performance, and offers a HUD display for a safer and more enjoyable driving experience.

**Highlights:** Real-time engine data collection, Vehicle fault code reading and solutions, Driving data recording and analysis, Vehicle performance testing (acceleration, braking), HUD display function, Day and night modes

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 车辆年检模拟 | $0.99 | one-time |
| YMOBD-business expansion | $1.99 | one-time |
| YMOBD-Battery monitoring | $2.99 | one-time |
| Super Car Sound | $5.99 | one-time |

**What reviewers like**

- 👍 Works well with Toyota
- 👍 Accurate with many functions
- 👍 Amazing for fixing cars
- 👍 Useful for live data monitoring
- 👍 Great and very detailed

**What reviewers complain about**

- 🐛 Scam, pay again for add-on
- 🐛 Crashes on iPhone 17 Pro
- 🐛 Requires personal info sharing
- 🐛 Does not connect at all
- 🐛 Junk, doesn't read OBD2 reader

**Reported bugs**

- App crashes on iPhone 17 Pro
- Purchased add-on requires payment again
- Contact section not working
- App crashes every time on iPhone 17 Pro
- Does not connect at all

**Requested features**

- Dark Mode support
- Landscape mode support
- Store data for comparison over time
- Summary of vehicle diagnostics without connection
- Run in background feature


## Frequently asked questions

### Is Mini OBDII free?

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

### Is YMOBD free?

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

### Which has better reviews, Mini OBDII or YMOBD?

Mini OBDII is rated higher. Mini OBDII averages 3.4 out of 5 from 5 ratings, while YMOBD averages 2.9 from 86 ratings.

### Do Mini OBDII or YMOBD have ads?

Neither Mini OBDII nor YMOBD shows ads.

### Which is updated more often, Mini OBDII or YMOBD?

Mini OBDII ships an update every 3 weeks, and YMOBD every 5 weeks. Most recently, Mini OBDII was updated on October 6, 2026 and YMOBD on October 13, 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.*