ALTIMETER

Privacy Policy.

Effective: May 30, 2026

The short version. Your altitude, location, sensor data, history, and waypoints stay on your device. Altimeter has no account system. Crash reports and usage analytics are off by default and only run if you opt in.

1. Who we are

Altimeter is a mobile application published by CodeEnsis Ltd. ("we", "our", "us"), Χριστόδουλου Σώζου 2, EIFFEL TOWER, Floor 3, Flat/Office 301, 1096 Λευκωσία, Κύπρος. Altimeter measures altitude using GPS and barometric pressure and includes a compass, altitude history, and track export. This policy explains what data the app handles and your rights under the EU General Data Protection Regulation ("GDPR").

2. Data stored on your device

Everything you create or measure - your GPS coordinates and altitude, barometric pressure readings, altitude history and sessions, named waypoints, alert thresholds, units, and other preferences - is stored only on your device. It is not transmitted to us, and we have no ability to access it. Compass heading is processed live and is not stored. We operate no backend server and no user accounts for Altimeter.

3. Data we collect about you

By default we collect nothing. Altimeter does not require an account and does not build a profile of you. The only data that can ever leave your device is the optional, opt-in crash and analytics data described in Section 5 - and only if you turn it on.

4. Location and sensor data

Altimeter uses your device's GPS location to determine altitude and coordinates and to record sessions. If you enable background tracking, location is accessed through a foreground service with a visible, persistent notification, so you always know when it is active. On devices with a barometric pressure sensor, pressure readings are used locally to improve altitude accuracy. We do not sell or share your location or sensor data, and you can control or revoke location access at any time in your device settings.

5. Crash reports and analytics (opt-in)

Altimeter integrates Firebase Crashlytics (crash diagnostics) and Firebase Analytics (anonymous usage statistics), provided by Google. Both are disabled by default. During onboarding, and at any time in Settings → Privacy, you can choose to enable or disable them. If you opt in, diagnostic and usage events - which do not include your stored altitude, coordinates, or waypoints - are processed by Google to help us fix crashes and improve features. If you never opt in, nothing is sent.

6. Third-party services

To provide certain features, the app may rely on the following services, each governed by its own privacy policy:

7. Sharing and exports

When you share an altitude snapshot or export a session as GPX or CSV, the file is generated on your device. If you share it, your device's standard share sheet sends it to the app or contact you select. We are not involved in that transfer.

8. Permissions

Altimeter requests location permission (foreground, and background only if you enable background tracking) and may request notification permission to show altitude alerts and the background-tracking notification. You can grant or revoke these in your device settings; core measurement works with foreground location alone.

9. Data retention and deletion

Because your data lives on your device, you control it. Clearing your history or deleting an item removes it immediately; uninstalling the app removes all Altimeter data from the device. If you opted in to diagnostics, crash reports are retained by Firebase Crashlytics for up to 90 days, and analytics data is retained according to Google's standard retention - you can stop further collection at any time in Settings → Privacy.

10. Children

Altimeter is intended for general audiences and is not directed to children under 13 (or under 16 in the EEA). We do not knowingly collect data from children.

11. Legal basis (GDPR) and your rights

Core altitude measurement and local storage rely on performance of a contract (Art. 6(1)(b) GDPR); app security and reliability rely on our legitimate interests (Art. 6(1)(f)); optional crash diagnostics and analytics rely on your consent (Art. 6(1)(a)), which you can withdraw at any time. Because your content is held on your device, you can view, edit, and delete it directly. You may also contact us to exercise rights of access, rectification, erasure, restriction, portability, or objection, and you may lodge a complaint with your local data protection authority.

12. International transfers

If you opt in to crash reports or analytics, Firebase may process data on servers outside your country, including in the United States. Google provides safeguards for such transfers as described in its privacy documentation.

13. Security

Your data is protected by your device's own security (lock screen, encryption). We recommend keeping your device secured and backed up.

14. Changes to this policy

We may update this policy as Altimeter evolves. Material changes will be reflected here with a new "Effective" date above.

15. Contact

Privacy questions or requests: [email protected]. General support: [email protected]. A human reads every message.