Belfry · Last updated 22 September 2026
Belfry is designed to respect your privacy. We do not require an account, and we do not collect your name, email, contacts, photos, or any content you create. This policy explains the limited data the app uses and why.
Anonymous usage & diagnostics. Belfry uses privacy-respecting analytics to understand which features are used and to find and fix problems (for example, which bells or peals are popular, or whether a screen errors). This is done with Google Analytics 4, using a random number the app creates on your device — not your name, email, Apple ID or advertising identifier. Google signals and ad personalisation are switched off, and the data is used only in aggregate and is not linked to your identity.
Approximate location (city level). Belfry never asks for, and never uses, your device’s GPS location. To place the sun and moon correctly and to time the prayer bells, it first estimates your region from your phone’s time zone, and then asks a free lookup service (ipwho.is, or ipapi.co if that is unavailable) for the approximate city belonging to your internet address. That request goes directly from your phone to the lookup service, which sees your internet address as any website would. The city and rough coordinates it returns are kept only on your device, are used only for the sky and the prayer times, and are never sent to us or to the leaderboard.
Purchases. Belfry offers a single optional one-time purchase to unlock premium features. Payments are processed entirely by Apple through the App Store — Belfry never sees or stores your payment card, Apple ID, or billing details. Apple provides only a confirmation that the purchase is valid so the app can unlock.
We do not collect your name, email address, phone number, contacts, precise GPS tracks, health data, photos, or the contents of any messages or documents. Apart from the leaderboard described below, Belfry has no social features, and it does not sell or share personal data with data brokers.
Belfry has a public leaderboard of towers. Every tower that has been opened in the hidden tower game is on it, so that the board shows every player’s score. If you never open the tower, or you lock it away again in Settings, nothing about it is sent.
For a tower that is open, the app sends the following about it, and nothing else:
This information is public. Anyone can see it in the app and on the leaderboard page at binauralbeats.fun/belfry/leaderboard, so please do not use your real name, or anything you would not want seen, as a tower, keeper or cat name.
Each tower’s entry is filed under a random tower ID created on your device. It is not your name, email, Apple ID or device identifier, and it is not linked to the anonymous analytics or to your identity. Entries are stored in Google Firebase Cloud Firestore, and the app updates yours at most once every few hours, and only when something has changed (or about once a day while the app is in use).
To stop sharing, lock the tower away (Settings › “Lock the tower away again”). The app then sends no further updates, and your entry stays as it was last sent. To have your entry deleted, email support@binauralbeats.fun with your tower’s name (and, if you can, its keeper’s name) and we will remove it. The app itself cannot delete entries, so deletion is done by us by hand. Lock the tower away first, or the app will add your tower again the next time it updates.
Apple (App Store purchases and notifications on your device) · Google Analytics 4 (anonymous usage) · Google Firebase Cloud Firestore (the public leaderboard only) · ipwho.is / ipapi.co (approximate city for the sky and prayer times). Belfry has no advertising and no tracking across other companies’ apps or websites.
Your settings (chosen bell, schedule, quiet hours, and whether you've unlocked premium) are stored locally on your device. They are not uploaded to us. The only exception is the leaderboard entry described above, and only while your tower is open.
Belfry is rated 4+ and is suitable for all ages. It does not knowingly collect personal information from children.
Belfry does not use device location, so there is no location permission to grant or refuse. You can stop leaderboard sharing at any time by locking the tower away again (Settings), and ask us to delete your entry. You can restore a previous purchase from the unlock screen. If you have any questions about your data, contact us below.
If this policy changes, we will update the date at the top and post the new version at this address.
Questions about privacy? Email support@binauralbeats.fun.