wow this app is amazing
One of a kind app. I’ve yet to see another app that can check if your OBD transmitter is a authentic ELM327
Response from developer
Thank you and glad to hear you’re finding the app useful!
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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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What's New in ELMCheck
v1.8.5
March 28, 2026
- Bluetooth errors now display human-readable messages instead of raw error domain codes. - Improved WiFi scanner disconnection handling. Connection refusals are now properly detected. - Fixed bug where the "device not found" error message was missing a closing parenthesis. - Fixed bug where VIN decode tests could report a successful result when the vehicle responded with blank data. All-space VIN payloads are now correctly rejected as invalid.
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$2.99
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FAQ
What is ELMCheck used for?
ELMCheck is used to test the authenticity and feature support of your ELM327-based OBD-II scanners. It runs a comprehensive set of tests to report which ELM327 commands your scanner actually supports, ensuring reliable performance.
Is ELMCheck free to use?
Yes, ELMCheck offers basic tests for free. To access the full test suite and gain complete confidence in your scanner's capabilities, an in-app purchase is required.
What kind of tests does ELMCheck perform?
ELMCheck runs tests covering the entire documented set of ELM327 commands. This provides a detailed report on the specific features your OBD-II scanner is capable of, regardless of what the device claims.
How does ELMCheck help ensure safe vehicle use?
By verifying that your OBD-II scanner supports the necessary commands and functions, ELMCheck helps prevent unexpected failures during diagnostics. This confidence allows for safer and more effective use of the scanner on your vehicle.
What devices is ELMCheck compatible with?
ELMCheck is available for Mac, iPhone, and iPad, making it accessible to a wide range of users who need to test their OBD-II scanners.
When was ELMCheck last updated?
The latest version of ELMCheck, v1.8.5, was released on March 28, 2026. This indicates ongoing development and support for the application.
What is the age rating for ELMCheck?
ELMCheck has an age rating of 4+, meaning it is suitable for users of all ages. This reflects the utility-focused nature of the application.
What is the user rating for ELMCheck?
ELMCheck has received an excellent rating of 5.0 stars from one review. This suggests a very positive initial user experience.
