Obd Mary – car scanner and dashboard with ELM327 app icon

Obd Mary – car scanner and dashboard with ELM327

👍 OBD2 car diagnostics. Custom dashboard. ELM trip computer. Download & Run!

TechnoDrive · com.elm.elm327.obd2.eobd.obd.car.scanner.diagnostics.tool.dashboard.doctor.check.engine.torque.speed.trouble.codes.mary

5.0 (3 ratings) 5M+ downloads v0.74 6 MB Android 4.0.3+ PEGI 3 · Everyone

Download APK 6 MB All versions
  • Signature matches the Google Play version Details

At a glance

Latest version
v0.74 (74)
Updated
Jul 16, 2026 (3 months ago)
APK size
6 MB
Requires
Android 4.0.3+ (API 15)
CPU support
Any (no native code)
Category
Auto & Vehicles (app)
Listed since
Mar 27, 2021 (at least)
Permissions
10 (1 sensitive)
Developer contact
[email protected]
Privacy
Developer's privacy policy

About this APK

Obd Mary – car scanner and dashboard with ELM327 is an app by TechnoDrive in the Auto & Vehicles category, listed since at least March 2021. It has no native code, so it runs on any Android processor.

It asks for 10 permissions, 1 of them sensitive: modify shared storage. The app offers in-app purchases through Google Play.

What's new in v0.74

Added more default gauges on dashboard Added more OBD-2 parameters Fixed some bugs

Description

From the listing uploaded by “appupdater”.

Obd Mary is a car scanner, gauge dashboard and trip computer with a number of cool features. Download the app -> Connect to the Vehicle with ELM adapter -> Start scanning your car. That's it! To make scanning and diagnostics you need the application Obd Mary and Bluetooth or Wi-Fi ELM327 adapter. Using the application as: - Car scanner (read and reset trouble codes/ vehicle errors; read car parameters); - Gauge dashboard (use custom gauges; create your own dashboards); - Trip computer (collect the data, observe the statistics); Speed, RPM, engine coolant temperature, fuel consumption, engine load, short/long term fuel trim, fuel and air pressure - all this data can be reading from your car engine ECU (electronic control unit). Attention! It is not all ECUs are supported by the application. The app usually supports engine and transmission control units. Some ECUs like Airbag, ABS, ESP are not supported. Obd Mary is a car scanner, gauge dashboard and trip computer with a number of cool features. Download the app -> Connect to the Vehicle with ELM adapter -> Start scanning your car. That's it! To make scanning and diagnostics you need the application Obd Mary and Bluetooth or Wi-Fi ELM327 adapter. Using the application as: - Car scanner (read and reset trouble codes/ vehicle errors; read car parameters); - Gauge dashboard (use custom gauges; create your own dashboards); - Trip computer (collect the data, observe the statistics); Speed, RPM, engine coolant temperature, fuel consumption, engine load, short/long term fuel trim, fuel and air pressure - all this data can be reading from your car engine ECU (electronic control unit). Attention! It is not all ECUs are supported by the application. The app usually supports engine and transmission control units. Some ECUs like Airbag, ABS, ESP are not supported.

Security & authenticity

Security rating: Trusted

Signing certificate

  • Signature matches the Google Play version Checked by the source store on Jul 16, 2026.
  • Certificate from Google Play App Signing Google keeps the signing key for the developer, so the certificate carries Google's name.

Store checks and file details

  • Developer signature not checked yet Jul 16, 2026
  • Validated against Google Play Jul 16, 2026
  • Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
  • Signing certificate (SHA-1)19:76:CF:42:9C:3F:DB:A9:B7:7D:65:91:91:28:F4:55:D7:31:B4:D0
  • File MD5f9da7b54cd57b14ac57f1d3b856c807e
  • Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (10)

Obd Mary – car scanner and dashboard with ELM327 requests 10 permissions, 1 of them sensitive.

Required hardware & features

Obd Mary – car scanner and dashboard with ELM327 APK: questions and answers

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is Obd Mary – car scanner and dashboard with ELM327 free?

The APK is free to download, but the app offers in-app purchases through Google Play.

Is the Obd Mary – car scanner and dashboard with ELM327 APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. After downloading, check that the file's MD5 is f9da7b54cd57b14ac57f1d3b856c807e.

Tags

elm327 obd2 eobd scanner diagnostics tool dashboard doctor check engine torque speed trouble codes mary auto vehicles

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