# OBDII Trouble Codes vs Uni Tool

The clearest difference is price: Uni Tool at Free against OBDII Trouble Codes's $3.99. OBDII Trouble Codes's advantage is iOS requirement (13.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Uni Tool is free to download; OBDII Trouble Codes costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | OBDII Trouble Codes | Uni Tool |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Positive reviews | 21.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | — |
| Monetization | Paid | — |
| Size | 54 MB | 25 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Oleg Chumakov](https://appshunter.io/developer/688892120) | [杭州宇泛智能科技有限公司](https://appshunter.io/developer/1156327327) |

## What reviewers say

### OBDII Trouble Codes

[App page](https://appshunter.io/ios/app/obdii-trouble-codes/id688892117)

Access a comprehensive offline database of over 18,500 diagnostic trouble codes for cars. Simply enter a fault code to get detailed descriptions without needing an internet connection or car model selection.

**Highlights:** Offline OBD2/EOBD code database, Over 18,500 error descriptions, No internet connection required, Simple fault code entry, Supports generic and manufacturer-specific codes, Copy and paste error descriptions

**Features:** macOS Compatibility

**In-app purchases:** none


### Uni Tool

[App page](https://appshunter.io/ios/app/uni-tool/id6758747571)

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

**In-app purchases:** none


## Frequently asked questions

### Is OBDII Trouble Codes free?

OBDII Trouble Codes costs $3.99, with no in-app purchases.

### Is Uni Tool free?

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

### Do OBDII Trouble Codes or Uni Tool have ads?

Neither OBDII Trouble Codes nor Uni Tool shows ads.

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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.*