Privacy Policy

The short version

Altim-O-Tron collects nothing, transmits nothing, and has no servers to send anything to. The app contains no networking code at all — it cannot phone home, because there is no home and no phone call.

What the app uses (entirely on your device)

• Location (GPS). Used to compute your altitude, coordinates, ground speed, and true-north compass heading. Processed on your device, displayed on your screen, and never sent anywhere.
• Barometer and motion data. Used for fast, precise altitude readings and the offline weather trend. Same deal: on-device only.

What the app stores (on your device only)

• Your preferences (units, launch tab, type size)
• Recorded sessions (elevation profiles you deliberately record)
• A rolling 48-hour log of air-pressure readings for the weather trend

All of it lives in the app's private storage on your iPhone. Deleting the app deletes all of it.

What leaves your device

Nothing — unless you explicitly export a recorded session as a GPX file using the share sheet. Where that file goes (AirDrop, Files, email) is entirely your choice, and the app neither knows nor cares.

Things this app does not have

No analytics. No advertising. No tracking. No accounts. No third-party SDKs. No data sales, because there is no data. Altim-O-Tron does not knowingly (or unknowingly) collect information from anyone, of any age, at any altitude.

Changes to this policy

If a future version of the app ever changes any of the above, this policy will be updated and the change will be called out in the App Store release notes. Given that the app's entire premise is working without a network, don't hold your breath.

Contact

Questions about this policy? Write to support@trompingmarmots.com.