# Diagnosis vs Mini OBDII

The clearest difference is iOS requirement: Diagnosis at 8.0 against Mini OBDII's 11. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Diagnosis ships an update monthly, Mini OBDII every 3 weeks. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Diagnosis | Mini OBDII |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (10 ratings)](https://appshunter.io/ios/app/mini-obdii/id1530755839/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | — | 37.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 550 MB | 33 MB |
| Requires iOS | **8.0** | 11 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [翔宇 金](https://appshunter.io/developer/528881861) | [Shenzhen Chaoyue Technology Development Co.,Ltd](https://appshunter.io/developer/1223781320) |

## What reviewers say

### Diagnosis

[App page](https://appshunter.io/ios/app/diagnosis/id1517729194)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Diagnosis free?

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

### Is Mini OBDII free?

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

### Do Diagnosis or Mini OBDII have ads?

Neither Diagnosis nor Mini OBDII shows ads.

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

Diagnosis ships an update monthly, and Mini OBDII every 3 weeks. Most recently, Diagnosis was updated on October 29, 2026 and Mini OBDII 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.*