HD Tune Pro vs Piston
HD Tune Pro
hdtune.comPiston
piston.appSide by side
| Figure | HD Tune Pro | Piston |
|---|---|---|
| Price from | $29.95/mo | Free |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Windows | Yes | — |
| Android | — | Yes |
| Plans published | 3 | 2 |
| Spec score · Hardware Diagnostic Software | 7.8 (#7) | 7.2 (#19) |
| Payment | The maker says buyers are directed to a secure order page from FastSpring and receive registration details by email after payment. | Premium is a single in-app purchase with no subscription, and payment is handled through Google Play billing. |
| Purpose | HD Tune Pro is a hard disk and SSD utility for measuring drive performance, scanning for errors, checking S.M.A.R.T. health, and securely erasing data. | Piston turns an Android mobile device into a car scanner for reading diagnostic trouble codes and Freeze Frame data. |
| Support | The maker lists [email protected] as its support contact. | Support is available by email at [email protected]. |
Plans
HD Tune Pro
- Single user license$29.95 a month
- Single user license$29.95, paid once
- HD Tune Pro single user license$29.95, paid once
In their own words
HD Tune Pro
HD Tune Pro has no write-up on Specifiction yet; its figures are above.
Piston
Piston is an Android app that turns a phone into a scanner for vehicle diagnostics. It works with OBD-II and EOBD vehicles through a separate ELM327 adapter connected by Bluetooth or WiFi. The free plan costs nothing and includes reading and clearing diagnostic trouble codes, viewing Freeze Frame data, and reading real-time sensor data. Access is limited to information the vehicle provides through OBD2. Premium adds sensor charts, CSV export, Readiness Monitors, fault history, cloud sync, and VIN reading. Some older vehicles may not support VIN readout. Piston uses Firebase services for crash reporting, monitoring, analytics, authentication, remote configuration, and cloud storage. Settings provide opt-outs for several data services, and account deletion permanently removes associated data.