Last updated: 5 October 2026
App: Masjid Prayer Display SriLanka ·
Developer: Aimzcode ·
Package: dev.aimzcode.successcall
Thank you for choosing Masjid Prayer Display SriLanka (“we,”
“us,” “our”), developed by Aimzcode.
This Privacy Policy explains what information the app handles, why, and what
leaves your device. It applies to the Google Play listing published under the
package name dev.aimzcode.successcall, used on Android phones,
tablets, Android TV / Google TV devices and HDMI display boxes installed in
masjid halls.
In short: Masjid Prayer Display SriLanka has no user accounts you sign into, no advertising and no analytics or tracking SDKs. It never accesses your device's location. To let a masjid's prayer settings sync across the devices showing that masjid's display, the app stores the masjid's prayer configuration (not personal data about you) in a cloud database, using an anonymous, unidentifiable device credential.
The app has no sign-up, login, profile or messaging feature. We never ask for your name, email address, phone number or date of birth, and nothing you type into the app is used to identify you personally.
Masjid Prayer Display SriLanka does not request, access or use your device's GPS or location services.
Your display's settings are saved in local app storage on the device itself:
This data stays on the device. Uninstalling the app, or using Reset App in Settings, deletes it from that device.
When you set up a display for a masjid (the one-time onboarding screen), the app creates a record for that masjid in our cloud database (Google Firebase/Firestore) so that:
That masjid record contains only the configuration you enter for the display, never anything that identifies you personally:
We do not collect your name, contact details, precise location, or anything about how you personally use the app in this record — only the masjid's prayer-display configuration.
To control which device may create or update a masjid's record, the app signs the device in to Firebase Authentication anonymously. This creates a random identifier for the installation — it is not a username, email or phone number, is not linked to your real identity, and you are never asked to provide any credential yourself. It exists purely so our database rules can tell “a device that set this masjid up” from “an unrelated device,” so a masjid's settings cannot be edited by someone who did not configure that display.
The app is not fully offline. The following things involve a network connection.
The app downloads prayer times and Hijri calendar data from our static
hosting on GitHub Pages (successcall.github.io). These are plain
file downloads — the app sends no personal data. As with any website,
the hosting provider (GitHub) automatically processes your IP
address in its standard server logs to deliver the file. We do not
receive, store or have access to those logs.
As described above, the masjid name, zone, district, iqamah times, prayer-schedule adjustments and display settings you configure are saved to Google Cloud Firestore, associated with an anonymous Firebase Authentication credential for the device — not with you personally. Google's handling of this data is governed by Google's Privacy Policy.
The app checks a small version file on our GitHub Pages hosting, and uses Android's in-app update API (Google Play) to check whether a newer version of the app is available. No personal data is sent beyond the standard request information (such as your IP address) that any network request involves.
This is a display app meant to run continuously on a screen in a masjid hall. Only the permissions below are ever requested:
| Permission | Why |
|---|---|
| Internet / network state | Download prayer data, sync masjid settings |
| Wake lock | Keep the display screen awake while showing prayer times |
| Run at startup (receive boot completed) | Automatically relaunch the display after a power cut or reboot — important for unattended hall displays |
| Display over other apps | Let the boot receiver bring the display back to the foreground automatically |
| Exact alarms | Fire scheduled display refreshes/alerts at the precise prayer minute |
The app does not request location, camera, microphone, contacts, SMS or storage permissions.
The app is built for Android phones/tablets, Android TV, Google TV and Android-based HDMI display boxes; it is excluded on Google Play from phone-class devices that do not fit a masjid-display use case, through Play Console device targeting rather than a runtime check.
Masjid Prayer Display SriLanka is suitable for all ages. We do not knowingly collect personal information from anyone, including children under 13. There are no accounts, chat, or user-generated content shared with other people.
| Service | Purpose | Policy |
|---|---|---|
| Google Firebase Authentication | Anonymous device credential, used only to control write access to a masjid's own record | |
| Google Cloud Firestore | Stores masjid prayer-display configuration so it can sync across displays | |
| GitHub Pages | Hosting prayer-time and Hijri calendar data files | GitHub |
| Google Play | App distribution and in-app updates |
We may update this Privacy Policy from time to time. Changes will be posted here with an updated “Last updated” date. Material changes to what data leaves your device will also be noted in the app's release notes.
Questions or suggestions about this Privacy Policy, or requests to delete a masjid's cloud record: