Phone

Piston - OBD2 Car Scanner

Auto & Vehicles • Stinez Pty Ltd • ⭐ 4.20 • 1,000,000+

OBD2 Diagnostics - Read and Clear Fault Codes and Access Data from Sensors

Version 3.11.0 7.0 MB Everyone

Screenshots

Permissions Explained 12 permissions requested View details

This app requests 12 permissions. The table below explains what each permission may allow and what users should review before installing.

Status	Permission	What it means	Why it may be used	User safety note
✅ Common	Internet access android.permission.INTERNET	Allows the app to open network connections and communicate with online services.	Commonly used for streaming, syncing, login, ads, analytics, downloads, cloud features, and app updates.	Common permission. Review the app’s behavior if it does not appear to need online access.
ℹ️ Review	Connect to Bluetooth devices android.permission.BLUETOOTH_CONNECT	Allows the app to connect to paired Bluetooth devices.	Used for audio devices, controllers, watches, cars, sensors, and smart accessories.	Review paired-device access if the app does not need Bluetooth features.
ℹ️ Review	Bluetooth Admin android.permission.BLUETOOTH_ADMIN	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Bluetooth access android.permission.BLUETOOTH	Allows the app to use Bluetooth features.	Used for headphones, controllers, wearables, cars, smart devices, nearby sharing, or accessories.	Review if the app has no obvious nearby-device or accessory feature.
ℹ️ Review	Send notifications android.permission.POST_NOTIFICATIONS	Allows the app to send notifications to the device.	Used for alerts, reminders, messages, account activity, updates, or media controls.	Review notification settings if the app sends too many alerts.
✅ Common	View network status android.permission.ACCESS_NETWORK_STATE	Allows the app to check whether the device is connected to Wi-Fi, mobile data, or another network.	Often used to avoid loading content when offline or to adjust loading based on connection quality.	Generally low risk by itself.
ℹ️ Review	Keep device awake android.permission.WAKE_LOCK	Allows the app to prevent the device from sleeping while a task is running.	Used for media playback, downloads, navigation, alarms, calls, or long-running background tasks.	Review battery usage if the app keeps the device awake too often.
ℹ️ Review	Finsky Permission Bind Get Install Referrer Service com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Receive Boot Completed android.permission.RECEIVE_BOOT_COMPLETED	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Foreground Service android.permission.FOREGROUND_SERVICE	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Com Clockworkbits Piston Dynamic Receiver Not Exported Permission com.clockworkbits.piston.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Vending Billing com.android.vending.BILLING	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.

About Piston - OBD2 Car Scanner

With Piston your car’s diagnostic information is at your fingertips. Is the Check Engine Light (MIL) on? Use Piston to turn your mobile device into a car scanner and read the Diagnostic Trouble Codes (DTCs) related to the problem as well as the Freeze Frame data. This will help you identify and fix the issue. You will need an ELM 327 based adapter, either Bluetooth or WiFi, which you connect to the OBD2 socket in your vehicle. Piston will guide you through the connection process. You can access the instructions from the Home page after the first installation or from the Settings at any time. With Piston you can: • Read and clear Diagnostic Trouble Codes (DTCs) defined by the OBD2 standard • Look into Freeze Frame data (a snapshot of the data from sensors at the time the ECU detected a malfunction) • Access data from sensors in real-time • Check status of Readiness Monitors (monitor emission control devices) • Store the DTCs you read in a local history • Login and keep the DTCs you read in the cloud • Access the charts of the sensors readouts • Export real-time data from sensors to a file • Check the VIN number of your car • Examine the ECUs details, like the OBD protocol or PIDs number Some of the above are Premium Features and require a single in-app purchase that will unlock all of them. No subscriptions! This application, in order to become a car scanner, requires a separate ELM327 based device, either Bluetooth or WiFi. Piston is compatible with OBD-II (known also as OBDII or OBD2) and EOBD standards. All the vehicles sold in the USA from 1996 are required to support the OBD2 standard. In the European Union, the EOBD was mandatory for petrol engined vehicles starting from 2001 and for diesel vehicles from 2004. For Australia and New Zealand OBD2 is required for all petrol cars made from 2006 and diesel cars made from 2007. Important: This application can only access the data your vehicle supports and provides via the OBD2 standard. If you have any questions or suggestions you can contact us at [email protected].

What Piston - OBD2 Car Scanner Is Used For

Piston - OBD2 Car Scanner appears to be a phone app for reading vehicle diagnostics through an OBD2 adapter. Based on the metadata, it is commonly used when the check engine light is on, or when a driver wants to check trouble codes, view freeze-frame details, and review live sensor data from a compatible car. It works with an ELM327-based Bluetooth or Wi‑Fi adapter connected to the vehicle’s OBD2 port.

The app may also be useful for monitoring readiness monitors, checking the VIN, viewing ECU details, and storing diagnostic history. The permission set suggests it needs Bluetooth and network access to connect to the adapter and handle online or account-related features, plus foreground service and wake lock support for ongoing scans. Some features appear to be available through a one-time in-app purchase, while the core use case is vehicle diagnostics on an Android phone.

Common uses

Read and clear OBD2 fault codes
View freeze-frame data from a detected issue
Monitor live sensor readings from a compatible vehicle
Check readiness monitor status for emissions-related systems
Save diagnostic codes in local history or cloud storage
Review charts and export sensor data to a file
Look up VIN and ECU details from supported vehicles

Best for:

car owners DIY diagnostics check engine light checks phone app vehicle scanner

Related tags

App Details

Package:
com.clockworkbits.piston

Category:
Auto & Vehicles

Developer:
Stinez Pty Ltd

Version:
3.11.0

Updated:
Oct 11, 2025

Min Android:
6.0

Age Rating:
Everyone

Contains Ads:
No

In-App Purchases:
Yes

Official Listing

Official listing available on Google Play
Package name: com.clockworkbits.piston
Age rating: Everyone

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How to Download Piston - OBD2 Car Scanner

If this app is not hosted directly on APKApps official link, then for the safest and most up-to-date version, install it from its official Google Play listing.