Privacy policy: Compass: Sun & Moon
Compass: Sun & Moon has no user accounts. What you create in the app stays on your phone unless you choose to share it. The app is free and shows ads through Google AdMob; a one-time purchase removes them. We do not sell personal data.
Who is responsible
The controller of personal data for Compass: Sun & Moon is:
- Business name
- Michal Jakubowski
- Address
- Stawy 11-11, 02-467 Warszawa, Poland
- Tax ID (NIP)
- 5261257404
- [email protected]
What the app processes
Sensors
The app reads your phone's magnetometer and motion sensors to show the heading, and the barometer (if your phone has one) to estimate altitude. This needs no permission. Readings stay on your phone.
Location (optional)
If you allow approximate location, the app uses it while it is open to show true north (magnetic declination) and the positions and times of the sun and moon. If you also allow precise location on the Location screen, it shows your coordinates, GPS altitude and accuracy there. Location is read only while the app is visible, never in the background, and is never sent anywhere. The last known place is stored on your phone, rounded to about 1 km, for the next start and the home-screen widget. Without the permission the compass works with magnetic north.
Copying coordinates
When you tap Copy, the coordinates go to your phone's clipboard and from there only where you paste them.
Permissions are optional: the app asks only when you use a feature that needs them, explains why, and keeps working if you say no.
Ads, purchases and Google services
Advertising (Google AdMob)
The app shows ads from Google AdMob. To show and measure ads, Google processes your device's advertising ID, IP address, device and app information and how you interact with ads. In the European Economic Area, the UK and Switzerland we ask for your consent through Google's consent form before any personalised ads are shown; without consent, Google shows only non-personalised or limited ads. You can change your choice at any time in the app: Settings → Privacy options. You can also reset or delete your advertising ID in Android settings. Google's use of this data is described at policies.google.com/technologies/partner-sites.
US residents
Under some US state privacy laws (for example in California), letting Google use your device's data to show ads based on your activity in other apps and websites can count as “selling” or “sharing” personal data. You can opt out at any time in the app: Settings → Privacy options. After you opt out, Google shows ads with restricted data processing. We do not sell personal data for money.
Purchases (Google Play)
The “Remove ads” purchase is processed by Google Play. We never see your payment details. Google gives us the order number, product, date, country and price, which we keep as long as Polish tax law requires (usually 5 years).
Ratings
The app may occasionally show Google Play's rating prompt. Your rating and review go to Google Play, not to us.
Backups
If Android backup is turned on, Android may back up the app's settings and saved data to your Google account. This is controlled by you in Android settings.
What we do not do
No accounts, no selling of personal data for money, and no analytics or crash reports sent to us from the app.
Your rights and legal details
Legal bases
Personalised ads: your consent (GDPR Art. 6(1)(a)). Purchases: performance of the contract (Art. 6(1)(b)) and our tax obligations (Art. 6(1)(c)). Non-personalised ads that fund the free app, and security of our services: our legitimate interest (Art. 6(1)(f)).
Who receives data
Google (Google Ireland Ltd. and Google LLC) for ads, consent, purchases and ratings. Transfers outside the EEA are covered by the EU–US Data Privacy Framework or the European Commission's standard contractual clauses.
Your rights
You can ask us for access to, correction or deletion of your data, restriction of processing, data portability, and you can object to processing based on legitimate interest. You can withdraw consent at any time (Settings → Privacy options) without affecting earlier processing. Most data exists only on your phone: uninstalling the app deletes it. You can also complain to the Polish data protection authority: Prezes Urzędu Ochrony Danych Osobowych, ul. Stawki 2, 00-193 Warszawa, uodo.gov.pl.
Children
The app is not directed at children under 13, and we do not knowingly collect their data.
Changes
If this policy changes, we will update this page and the date below.
Last updated: 2026-11-14