Effective date: August 14, 2026

SUTuner (the “app”) is a needle-selection and dyno-tuning reference tool for SU carburetors. This policy explains exactly what data the app touches.

The short version

SUTuner has no accounts, no networking, no analytics, and no cloud sync. Nothing you enter or import ever leaves your device.

Data the app uses

• Your search and tune settings — last-used jet size and needle type. Saved locally in the app’s private storage so your inputs persist between sessions.
• Imported dyno AFR logs — if you choose to import a CSV file, the parsed readings (AFR, vacuum, and optional RPM) are stored locally in the app’s private storage, along with the name you give the log and your target AFR bands. Nothing is uploaded anywhere; the file you pick is read once and its contents are kept on-device.

All of the above stays on your device. The app does not collect analytics, crash reports, device identifiers, advertising identifiers, location, contacts, photos, or any other information.

Permissions the app requests

SUTuner uses the standard iOS file picker to let you choose a CSV file to import — this does not require any special permission prompt, and the app only reads the single file you select. The app does not request location, camera, photo library, contacts, or any other permission.

Third parties

The app uses no third-party analytics, advertising, or tracking SDKs, and makes no network requests of any kind.

Children

The app is not directed at children and does not knowingly collect information from anyone, of any age.

Changes to this policy

If this policy changes in any meaningful way, the effective date at the top of the page will be updated.

Contact

Questions about this policy can go to shop@skunkriverresto.com.