Tempograph

Privacy Policy

Last updated: April 27, 2026

Tempograph is an iPhone app for measuring the timing behavior of mechanical watches. This policy explains what the app accesses, what it stores, and what it does not collect. The short version: Tempograph works locally on your device and does not send your data to Cognerva.

Microphone access

Tempograph uses the iPhone microphone to listen for watch ticks during measurement or raw capture recording. Live tick analysis happens on-device. Microphone audio is not uploaded to Cognerva or any third party.

Saved measurement data

If you save a session, Tempograph stores watch profiles, measurement results, notes, and session history locally on your device. This data stays in the app's local storage unless you explicitly export it.

Raw recordings

If you choose to record raw audio for calibration or backtesting, the recording file is saved locally on your device. It is only shared when you explicitly use the app's share or export controls.

Exports and sharing

Tempograph can export CSV, JSON, text reports, and raw audio files. These exports are created on-device and passed to the standard iOS share sheet only when you request it.

No accounts, no analytics, no ads

Tempograph does not require sign-in and does not include advertising SDKs, analytics SDKs, or third-party tracking systems.

Network use

Tempograph does not need a server connection for measurement. If you tap links to the product website, support email, or App Store pages, those destinations are handled by iOS or your browser.

Your control

• You can delete saved watches, sessions, and recordings from inside the app.
• You can revoke microphone access at any time in iOS Settings.
• You can choose whether or not to export or share any saved data.

Contact

Questions about this policy or Tempograph support requests can be sent to [email protected].