# ELMCheck vs AutoOBDII

The clearest difference is in-app purchases: AutoOBDII at none against ELMCheck's 1. AutoOBDII also leads on iOS requirement (13 vs 18). ELMCheck's advantage is update cadence (every 10 days vs every 4 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. ELMCheck sells 1 one-off in-app purchase. AutoOBDII asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for ELMCheck against 5.0 for AutoOBDII. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

ELMCheck ships an update every 10 days, AutoOBDII every 4 months. The most recent releases landed on September 16, 2026 and July 20, 2026 respectively.

## The numbers

| Metric | ELMCheck | AutoOBDII |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/elmcheck/id6479630442/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/autoobdii/id6503489503/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 4 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 6 MB | 83 MB |
| Requires iOS | 18 | **13** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Fearless design, LLC](https://appshunter.io/developer/321056993) | [Shenzhen Lonauto Technology Co., Ltd.](https://appshunter.io/developer/1744849406) |

## What reviewers say

### ELMCheck

[App page](https://appshunter.io/ios/app/elmcheck/id6479630442)

Verify the authenticity and functionality of your OBD-II scanner. This app runs comprehensive tests on ELM327 commands to report supported features, ensuring safe and reliable use with your vehicle.

**Highlights:** Authenticity testing for OBD-II scanners, Comprehensive ELM327 command test suite, Reports actual supported features, Ensures safe scanner usage, Basic tests are free, Unlock full suite with in-app purchase

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Comprehensive testing | $2.99 | one-time |


### AutoOBDII

[App page](https://appshunter.io/ios/app/autoobdii/id6503489503)

This application connects to your vehicle via Bluetooth to perform diagnostics and offer driving assistance. It can read and clear fault codes, analyze performance, and track your journeys. Supports multiple languages and high-speed data transmission.

**Highlights:** Bluetooth vehicle communication, Fault code reading and clearing, Instrument panel monitoring, Performance testing, Travel analysis, High-speed data transmission, Low power consumption

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

**In-app purchases:** none


## Frequently asked questions

### Is ELMCheck free?

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

### Is AutoOBDII free?

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

### Which has better reviews, ELMCheck or AutoOBDII?

ELMCheck and AutoOBDII are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do ELMCheck or AutoOBDII have ads?

Neither ELMCheck nor AutoOBDII shows ads.

### Which is updated more often, ELMCheck or AutoOBDII?

ELMCheck ships an update every 10 days, and AutoOBDII every 4 months. Most recently, ELMCheck was updated on September 16, 2026 and AutoOBDII on July 20, 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.*