Piston - OBD2 Car Scanner

Name: Piston - OBD2 Car Scanner
Rating: 4.27 (5535 reviews)
Author: Stinez Pty Ltd

By: Stinez Pty Ltd

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

Features & Capabilities

Piston is a powerful OBD2 car scanner Chrome extension that lets you transform your mobile device into a comprehensive car diagnostics tool. It reads and clears Diagnostic Trouble Codes (DTCs) and provides access to Freeze Frame data and real-time sensor information, allowing users to identify and fix vehicle issues such as Check Engine Light alerts.

Using an ELM 327 Bluetooth or WiFi adapter connected to your vehicle’s OBD2 socket, Piston guides you through setup and offers advanced features including storing fault codes locally and in the cloud, monitoring emission control readiness, exporting sensor data, viewing VIN details, and examining ECU information. The extension supports OBD-II and EOBD protocols compatible with most vehicles made after 1996 (USA) and later years in Europe, Australia, and New Zealand. Premium features unlock with a single purchase, with no subscriptions required. Piston is ideal for car owners and mechanics seeking easy-to-use, in-depth vehicle diagnostics.

User Growth & Download Statistics

App

By:

Downloads:

Rating:

Version:

3.11.0 Last updated: 2026-05-27

Version code:

1709

Creation date:

2014-06-26

Publisher country:

Permissions:

android.permission.BLUETOOTH Moderate risk
android.permission.BLUETOOTH_CONNECT Moderate risk
android.permission.FOREGROUND_SERVICE_CONNECTED_DEVICE Moderate risk
android.permission.ACCESS_ADSERVICES_AD_ID Low risk
android.permission.ACCESS_ADSERVICES_ATTRIBUTION Low risk
android.permission.CHANGE_WIFI_STATE Low risk
android.permission.FOREGROUND_SERVICE Low risk
android.permission.INTERNET Low risk
android.permission.POST_NOTIFICATIONS Low risk
android.permission.RECEIVE_BOOT_COMPLETED Low risk

Size:

11.11MB

Email:

su*****@piston.app

URLs:

Website ,Privacy policy

Full description:

Source:

Google Play Store

Data ingested on:

2026-06-05

Compare stats and ranking:

Ranking

# 55,870 ▼ 122

Other rankings

#168 in Auto and vehicles (Gross) ▼ 17

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:

Stinez Pty Ltd

Google Play Store

https://play.google.com/store/apps/details?id=com.clockworkbits.piston

Email:

su*****@piston.app

Website:

https://piston.app/

User Reviews

Piston is widely praised for ease of use, a clean UI, and solid Bluetooth OBD-II compatibility. It delivers codes and sensor data with charts and offers good value via a one-time purchase. Users note it’s effective for diagnosing issues and often saves trips to the shop. Common requests include customizable dashboards, importing custom PIDs, reordering live data, Android Auto support, and occasional licensing prompts, with some vehicle-specific limits (e.g., Renault voltage readings). Overall, a strong, no-subscription OBD2 app.

Pros

Easy to use with a clean, simple UI
Strong Bluetooth OBD-II compatibility (works well with Veepeak and other BT adapters)
Provides codes and sensor data with informative charts
Good value: useful features with a one-time purchase instead of a subscription
Helpful for diagnosing issues and saving trips to the repair shop

Cons

Recent reviews

best obd app

ol*****, 2026-03-15

works great with the Veepeak Bluetooth scanner I bought on Amazon!

Er*****, 2026-02-22

Very easy to use and super useful when diagnosing issues. I have two suggestions on making it better. 1) I have two Bluetooth scanners that work with Piston. Each one stays with a different car. I can switch back and forth between them, but the names are something along the lines of "ELM II" vs "ELMII" and I cannot remember which car has a space in the name. Some customization options would be nice in this regard. 2) I would like to combine charts with colored lines, or set up groups.