Offline calculations, local storage.

Data Handling

The app works offline and does not require an account, domain or server. Projects, setups, records, report history and preferences are stored locally on the device by default.

The app does not actively collect identity information, does not request location, camera, audio recording, Bluetooth or push notification permissions, and does not include ads or third-party tracking SDKs.

Export and Import

Users can export PDF, CSV, PNG or JSON files. Exported files are saved or shared only through user action. The app does not automatically send exported content to a server.

When importing data, new projects are added locally. If duplicate data exists, the app asks whether to replace or skip matching data.

Local Data

Uninstalling the app, clearing local data or changing devices may remove local data. Use the full data backup feature when project data should be preserved.

Disclaimer

Gear ratio, speed, RPM, tire, sprocket and RC results are theoretical estimates only. Real-world performance can be affected by engine power, aerodynamic drag, tire deformation, tire slip, clutch or torque converter loss, drivetrain loss, vehicle weight, road conditions, altitude, temperature and mechanical condition.

The app must not be used for illegal speeding, unsafe testing or dangerous driving. Users are responsible for following local laws and using results safely and legally. The developer is not liable for vehicle damage, personal injury, legal violations or any loss resulting from use of the calculations.