# Mini OBDII vs 4Wheel Aligner

The clearest difference is update cadence: Mini OBDII at every 3 weeks against 4Wheel Aligner's every 6 months. 4Wheel Aligner's advantage is iOS requirement (8.1 vs 11). On price, ads, in-app purchases and device support there is nothing between them.

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

Mini OBDII ships an update every 3 weeks, 4Wheel Aligner every 6 months. The most recent releases landed on October 6, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Mini OBDII | 4Wheel Aligner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (5 ratings)](https://appshunter.io/ios/app/mini-obdii/id1530755839/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 months |
| Monetization | Free | — |
| Size | 33 MB | 3 MB |
| Requires iOS | 11 | **8.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Chaoyue Technology Development Co.,Ltd](https://appshunter.io/developer/1223781320) | [思 李](https://appshunter.io/developer/1611668585) |

## 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


### 4Wheel Aligner

[App page](https://appshunter.io/ios/app/4wheel-aligner/id1616582492)

**In-app purchases:** none


## Frequently asked questions

### Is Mini OBDII free?

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

### Is 4Wheel Aligner free?

4Wheel Aligner is free to download, with no in-app purchases.

### Do Mini OBDII or 4Wheel Aligner have ads?

Neither Mini OBDII nor 4Wheel Aligner shows ads.

### Which is updated more often, Mini OBDII or 4Wheel Aligner?

Mini OBDII ships an update every 3 weeks, and 4Wheel Aligner every 6 months. Most recently, Mini OBDII was updated on October 6, 2026 and 4Wheel Aligner on September 19, 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.*