# Dr.OBD vs ELMCheck

The clearest difference is in-app purchases: Dr.OBD at none against ELMCheck's 1. Dr.OBD also leads on iOS requirement (11.0 vs 18). ELMCheck's advantage is update cadence (every 10 days vs every 2 months). On price, ads and device support there is nothing between them.

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

Dr.OBD ships an update every 2 months, ELMCheck every 10 days. The most recent releases landed on September 22, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Dr.OBD | ELMCheck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/elmcheck/id6479630442/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Size | 3 MB | 6 MB |
| Requires iOS | **11.0** | 18 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Leagend Optoelectronics Co., Ltd.](https://appshunter.io/developer/6798210621) | [Fearless design, LLC](https://appshunter.io/developer/321056993) |

## What reviewers say

### Dr.OBD

[App page](https://appshunter.io/ios/app/drobd/id1225894625)

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Dr.OBD free?

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

### Is ELMCheck free?

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

### Do Dr.OBD or ELMCheck have ads?

Neither Dr.OBD nor ELMCheck shows ads.

### Which is updated more often, Dr.OBD or ELMCheck?

Dr.OBD ships an update every 2 months, and ELMCheck every 10 days. Most recently, Dr.OBD was updated on September 22, 2026 and ELMCheck on September 16, 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.*