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Screenshots

  • ChkOBD OBD2 Analyzer screenshot 1
  • ChkOBD OBD2 Analyzer screenshot 2
  • ChkOBD OBD2 Analyzer screenshot 3
  • ChkOBD OBD2 Analyzer screenshot 4

About ChkOBD OBD2 Analyzer

ChkOBD let you connect your iPhone and iPad to your Car and view the most important Engine values in a very intuitive user interface in an appealing user-friendly way. ChkOBD connects wirelessly to an ELM237 enabled OBDII - Bluetooth adapter which is readily available from many 3rd party vendors. From this free application that let you have access to the basic “Engine Values”, you will have In-App purchase to access additional information such as : . Advanced Engine Values, an extended choice of sensors available on your car, that you can select and monitor. The available Engine Value from your car, are all listed in a “grey” mode, so, you will have no surprise of what you will get (or not get !) after the In App purchase . Smog Check Assistant, to know if your car will pass the next Smog Check at the state official station, or the App will let you know what needs to be fixed, before driving there, . VIN Analyzer, will let you know what information is in the “government file” from your car, including date and place of manufacturing, . Error Decoder and Reset, to know what is the current error that is in the Memory of the computer of your car and let you have a way to try to reset this error (Normally, it comes back on, if the cause of the error is not mechanically fixed). This is an error scan that is going through about 4'000 possible errors. Usually all these information will be read from all car that have been sold in the USA after 2005. The fact that these applications are offered from inside a free app, in our side, from this free app, we are able to check before any of your purchase, that your car and your Bluetooth adapter will be 100% compatible with these applications. We are using this technology to try to provide to our customers the best possible satisfaction.

What’s new

Version 3.1.5 · Updated March 26, 2026

Security updates and patches

App privacy

The developer, Check On-Board Diagnostics LLC, reported these privacy practices to Apple.

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

  • Location: Precise Location, Coarse Location
  • Contact Info: Email Address
  • Identifiers: User ID
  • Diagnostics: Crash Data
  • Other Data: Other Data Types

Used for: App Functionality

Alternatives to ChkOBD OBD2 Analyzer

Looking for apps like ChkOBD OBD2 Analyzer? Here are 6 similar apps on the App Store. The highest rated is Dauntless OBD (5.0/5), and all 6 are free to download.

ChkOBD OBD2 Analyzer vs. alternatives
App Rating Price Last updated Compare
ChkOBD OBD2 Analyzer 3.0 / 5 (4 ratings) Free March 26, 2026
Dauntless OBD 5.0 / 5 (12) Free Oct 17, 2026 Compare
OBDGO PRO 4.5 / 5 (31) Free May 27, 2025 Compare
ELMCheck 5.0 / 5 (1) Free Oct 23, 2026 Compare
OBDPulse OBD2 Car Scanner 5.0 / 5 (1) Free Oct 9, 2026 Compare
LELink Scanner 5.0 / 5 (1) Free Mar 26, 2025 Compare
NexzScan 2.1 / 5 (27) Free Oct 14, 2026 Compare

Compare ChkOBD OBD2 Analyzer with the top alternatives: ratings, updates, ASO score and keyword gaps →