Privacy Policy

Last updated: 29 July 2026

This policy explains how the Astro Sigil mobile application (the “App”, “we”, “us”) handles information. By using the App you agree to what is described here. If you do not agree, please do not use the App.

The short version. Astro Sigil has no accounts, no sign-in and no server of ours. It never asks for your name, e-mail, birth date, birth place or location. Everything it knows about you stays on your phone. The only data that leaves your device is handled by Google's advertising, purchase and analytics services, described in section 3.

1. What the App Does

Astro Sigil calculates the positions of the Sun, Moon and planets for the current day and shows the aspects they form with one another. The calculation runs entirely on your device using a built-in ephemeris. It is based on the date and time only — not on any birth chart, and not on where you are.

2. Information Stored on Your Device

We do not collect or receive personal information. We operate no server and have no database of users. The App creates and keeps the following on your device only:

Your display preferences — theme mode (system, light or dark) and colour palette.
Whether you have bought the one-time “remove ads” option.
Which aspects you have marked as seen, so your collection persists between sessions.
A short-lived local cache of the current day's computed sky, so the App opens quickly.
The time an interstitial ad was last shown, used only to space ads out.

None of this is transmitted to us. It is removed when you clear the App's storage or uninstall it.

3. Third-Party Services

The App uses the following Google services, each governed by its own privacy policy:

Google AdMob — serves the in-feed and occasional full-screen ads that fund the App. AdMob may collect and process device and usage information, including a device advertising identifier, IP address, and interactions with ads, in order to serve and measure ads (including personalised ads where permitted). See Google's advertising policy and Google's privacy policy.
Google Play Billing — processes the optional one-time purchase that removes ads. Payment details are handled entirely by Google Play; we never see or store them. We receive only whether the purchase exists, and we keep that answer on your device.
Google Analytics for Firebase — reports anonymous, aggregated usage and stability information (for example how many times the App was opened, the app version and general device model) so we can tell whether the App is working. It is not used to identify you, and we do not link it to any personal data — because we hold none.
Google Play Services — the platform layer the three services above run on.

If you buy the ad-free option, the App stops requesting and displaying ads through AdMob.

4. Permissions

The App requests only network access — INTERNET and ACCESS_NETWORK_STATE — and only so the Google services above can function. It does not ask for your contacts, camera, microphone, location, files, or any other sensitive device feature. The astrology itself works offline.

5. Children

The App is not directed at children under 13 (or the equivalent minimum age where you live), and we do not knowingly collect personal information from children. If you believe a child has provided information through the third-party services above, please write to us so it can be addressed.

6. Your Choices

Reset or limit ad personalisation at any time from your device's advertising settings (“Reset advertising ID” or “Opt out of Ads Personalisation” on Android).
Remove ads entirely with the one-time in-app purchase.
Delete everything the App has stored by clearing its storage or uninstalling it. Because there is no account, there is nothing left behind for us to delete on your behalf.

7. Data Security and Retention

Since the App sends us no personal data, we store and retain none. Data the App creates stays on your device under the protection of your device's operating system until you clear it or uninstall. Information handled by Google's services is retained according to Google's policies.

8. Changes to This Policy

We may update this policy from time to time. Changes are reflected by updating the “Last updated” date above. Continuing to use the App after a change takes effect means you accept the revised policy.

9. Contact

For any question or request about privacy, write to lefou0@outlook.com.