Dr.OBD vs ELMCheck
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dr.OBD
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Dr.OBD is a mobile phone app that do analysis on vehicle diagnostic fault code. It can automatically retrieve the fault codes diagnosed by OBD device via Bluetooth 4.0. Also, it will send notification alert at mobile phone side and auto query each fault code corresponding to the fault description, expert failure analysis and solutions. Meanwhile, it can provide share and print function.
ELMCheck
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.
- 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
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Check the authenticity of your OBD-II scanner with ELMCheck. Most OBD-II scanners on the market use some variation of ELM327, but did you know that many scanners use clones of the original ELM327? It can be hard to tell, because these clones will work well enough for basic use but fail in unexpected scenarios. This is where ELMCheck comes in. ELMCheck offers a comprehensive set of test cases that cover the entire documented set of ELM327 commands. Regardless of which version your scanner says it is, ELMCheck can provide a comprehensive report of the features that are actually supported. Get the confidence you need to use your OBD-II scanner on your vehicle safely. ELMCheck is free to run basic tests. An in-app purchase will unlock the full test suite.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Dr.OBD | ELMCheck |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, Mac — better |
| Requires iOS | 11.0 — better | 18 |
| Further details — not scored | ||
| Size | 3 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Shenzhen Leagend Optoelectronics Co., Ltd. | Fearless design, LLC |
In-app purchases
Dr.OBD
No in-app purchases
ELMCheck
- Comprehensive testing$2.99
