Summary

The Firmament is an offline educational and conceptual sky visualization. It does not require an account and does not include advertising, analytics or tracking SDKs. Optional Pro purchases and ISS orbital-data updates use network services described below.

Device location

The app can use approximate or precise foreground location only after you choose Use current location and grant location permission. It requests a single location fix to set the observer's latitude, longitude and, when sufficiently accurate, elevation. The app does not request background location or continuously monitor your location.

Location is processed on your device. It is not sent to the developer or a third-party server and is not used for advertising or analytics. You can use manual coordinates or the bundled offline city search instead, and you can revoke location permission in your device settings.

On-device information

Interface preferences, including a manual language choice, may be stored locally on your device. The bundled map, city, time, star and constellation data is read locally. Observer locations and downloaded ISS orbital elements may also be stored locally. Core sky calculations work offline; optional store purchases and orbital-data refreshes use the network.

Data collection, sharing and retention

The app does not send observer locations or usage analytics to a developer-operated server, and the developer does not sell personal data. You can clear local data or uninstall the app using your operating system's controls; backup and restore behavior depends on your platform settings. If you email support, your email address, message and any attachments are received and used to answer your request. Send only what is needed for support. Contact us to ask about deletion of support correspondence; store-managed purchase records are controlled by the relevant store.

Children

The app is not directed specifically at children and does not knowingly collect children's personal information through an app account or analytics system. Parents can disable location permission and control purchases through their platform's parental controls.

Changes

We will update this policy when the app's data practices change. The effective date above identifies the current policy version.

Contact

For privacy questions or support, email mapoftruthcontact@gmail.com.

Pro purchases and subscriptions

Pro can be unlocked by an optional lifetime purchase or monthly subscription through Apple App Store, Google Play or Microsoft Store. The store processes payments and maintains purchase records under its own privacy policy. The app checks verified purchase or subscription entitlements to unlock features. The developer does not receive your payment-card details, and the app does not send purchase receipts to a developer-operated verification server.

Manage purchases, restore access and cancel subscriptions through the applicable store account. Uninstalling the app does not cancel a subscription. Store providers may provide the developer with sales, transaction and subscription reports through their developer consoles.

Optional ISS updates and external services

When the ISS layer is enabled, the app can download public orbital elements from CelesTrak and, as a fallback, Where the ISS At. These requests identify the ISS satellite, not your observer location. Positions are calculated locally and downloaded elements are cached to reduce requests.

As with ordinary internet requests, these providers can receive your IP address and connection metadata and may keep service logs under their own policies. The developer does not control their logging or retention. Opening external links also connects you to the chosen website or email provider. The support website is hosted on Google Firebase Hosting, whose infrastructure may process connection metadata to deliver the site.