Piston

6.9easy start · #9 of 25
in Hardware Diagnostic Software

Free to practise onyes
Free trialnot on record
Well documentedyes
Runs where you worknot on record

Runs on Android.

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Piston is ranked #9 of 25 in hardware diagnostic software on The Geeks Club. It runs on Android. There is a free plan.

Piston plans and pricing

All plans

Free Free Read and clear fault codes · Read Freeze Frame data · Real-time sensor data piston.app · 4 Oct 2026

Premium Not published Pay once, use forever Real-time sensor charts · CSV export · Readiness Monitors · Fault history and cloud sync · VIN reading piston.app · 4 Oct 2026

Compared on hardware diagnostic software

Free plan: Yes

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The record

Purpose: Piston turns an Android mobile device into a car scanner for reading diagnostic trouble codes and Freeze Frame data.
Adapter required: The app requires a separate ELM327 based adapter that connects by Bluetooth or WiFi.
Vehicle standards: Piston is compatible with OBD-II and EOBD standards and can access only data the vehicle supports through OBD2.
Diagnostics: The app can read and clear OBD2 diagnostic trouble codes, view Freeze Frame data, and access live sensor data.
Premium features: Premium adds sensor charts, live data export to CSV, Readiness Monitors, fault history, cloud sync, and VIN reading.
Payment: Premium is a single in-app purchase with no subscription, and payment is handled through Google Play billing.
Integrations: The app uses Firebase services for crash reporting, performance monitoring, analytics, remote configuration, authentication, and cloud data storage.
Security: The privacy policy says data sent to remote servers is encrypted and the app uses the Play Integrity API.
Privacy controls: Users can opt out of crash reporting, performance data, remote configuration, and analytics in Settings.
Data deletion: Users can delete their account from the app, which permanently deletes associated data such as historical fault codes.
Support: Support is available by email at [email protected].
Notable limitation: Some older vehicles may not support VIN readout.
Maker: The Google Play listing identifies the developer as STINEZ PTY LTD and gives an address in Sutherland, NSW, Australia.
Headquarters: Sutherland, New South Wales, Australia
Price from: Free

Where it ranks on The Geeks Club

Best Hardware Diagnostic Software in 2026#9 of 25

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Sources

piston.app· checked 4 Oct 2026
piston.app/help/· checked 4 Oct 2026
play.google.com/store/apps/details· checked 4 Oct 2026
piston.app/privacy/· checked 4 Oct 2026
piston.app/delete-your-account/· checked 4 Oct 2026