AltiView Privacy Policy

AltiView (the "Service") is developed and operated by Fengwei Software ("we", "us"). We take your privacy seriously. This policy explains what information we collect, how we use, store and protect it, and the rights you have.

This policy covers both the iOS and the HarmonyOS versions of AltiView. Both handle your data the same way; only the location of cloud backups and the third-party services involved differ by platform, and those differences are marked below.

Please read this policy carefully. By using the Service you confirm that you have read and agree to this policy.

1. Information we collect

• Location: with your permission we access your location — including in the background when you grant "Always" — to show altitude, record tracks and log footprints. Location data is used only for these features.
• Motion and sensor data: with your permission we read barometer, step count and speed data to compute altitude, elevation change and activity state.
• Content you enter: track names, notes and photos you attach to footprints or recorded points are stored in the local database on your device.
• Weather data (iOS only): when weather is displayed, we request conditions for your location from Apple Weather (WeatherKit); the request is handled by Apple. The HarmonyOS version has no weather feature, so no such data is involved.
• Device and diagnostic data: device model, system version and app version may be collected to keep the Service stable and secure.
• Subscription data: your subscription and purchase status is provided and verified by the app store of the platform you use (Apple StoreKit on iOS, HUAWEI AppGallery on HarmonyOS) to determine your entitlements.
• Advertising data (free iOS version only): the free iOS version shows ads, and the ad provider may collect device identifiers and ad interaction data. The HarmonyOS version currently shows no ads.

2. How we use information

We use your information only for these purposes:

• Providing core features: altitude display, track recording, footprints, elevation profiles and 3D tracks;
• Converting units and displaying the app in your language (weather display is iOS only);
• Verifying subscriptions, handling purchases and restoring purchases;
• Displaying ads (iOS users who have not upgraded to Pro only);
• Troubleshooting, improving the product and keeping it secure.

3. Storage and sharing

• On-device first: your altitude samples, tracks, footprints and photos are stored in a local database on your device. We do not operate servers that store this data.
• Cloud backup: only when you use the backup feature is data written to the cloud — on iOS to your own private iCloud container (provided and encrypted by Apple), on HarmonyOS to HUAWEI Cloud (provided by HUAWEI, and only while you keep this app's sync switch on in system Settings → Cloud). We cannot access these backups either way. The HarmonyOS version can additionally export a backup as a zip file to a location you choose.
• We do not sell your personal information.
• To deliver the features above, data may be processed by: Apple (location and maps, iCloud backup, WeatherKit and App Store purchases on iOS), HUAWEI (location and map services, HUAWEI Cloud backup on HarmonyOS) and Google AdMob (ads in the free iOS version). We share only what is necessary for them to perform their role.
• We may disclose information where required by law or where necessary to protect our rights or the rights of others.

4. Managing permissions

You can change these permissions at any time in system settings — on iOS: Settings → AltiView; on HarmonyOS: Settings → Apps → AltiView → Permissions (entry names may differ slightly between system versions):

• Location (iOS / HarmonyOS): Never, While Using the App, or Always. Turning it off disables altitude, track recording and footprints; continuous background recording needs "Always".
• Motion & Fitness (iOS) / Motion (HarmonyOS): turning it off disables barometric altitude and step data.
• Photos / Camera (iOS / HarmonyOS): turning it off prevents adding photos to your records.

5. Retention and deletion

• Local data is managed by you: delete individual tracks or footprints, or clear everything, inside the app.
• Cloud backups are created and deleted by you. On iOS, deleting the app does not automatically remove an iCloud backup — delete it in the app or disable iCloud first. On HarmonyOS the backup lives in HUAWEI Cloud and whether it survives uninstalling depends on your Cloud settings, so export it as a zip file before uninstalling if you want to keep it.
• Uninstalling the app removes local data on your device, so please back up first.

6. Your rights

• Access and export: view your data in the app and export it as GPX or CSV.
• Deletion: delete any data; contact us if you need help removing a cloud backup.
• Withdraw consent: revoke location, motion or photo permissions in system settings.
• Limit personalised ads (iOS only): restrict ad tracking in system settings, or upgrade to Pro to remove ads. The HarmonyOS version shows no ads.

7. Children's privacy

The Service is intended for adults. We do not knowingly collect personal information from children. If you are a guardian and believe a minor has used the Service without consent, please contact us and we will act promptly.

8. Changes to this policy

We may update this policy from time to time. Updates will be posted on this page with a revised "last updated" date, and material changes will also be announced in the app.

9. Contact us

If you have questions about this policy or wish to exercise your rights, please contact us at:
Email: bluetools@asmo.fun