Silentum is a simple utility that silences your phone for a fixed period (15 minutes, 30 minutes, 1 hour or 4 hours) and automatically restores the sound when the time is up. This policy explains how it handles data.
Silentum has no accounts and never asks for your name, email or phone number.
It has no account system, no advertising and no tracking across other apps or sites. Since version 1.0.8 it sends anonymous usage statistics — see the section below — which you can switch off at any time in Settings → Privacy.
Both versions (Google Play and the APK from this site) send those statistics and therefore hold the Internet permission; both also contain an optional bug report that testers can send on purpose (see below). Version downloaded from this site additionally goes online to check for and download a new version of the app — never your personal data, and never in the background.
To see how many people actually use Silentum and which screens they open, the app includes Google Analytics for Firebase. It is on by default and can be switched off at any time in Settings → Privacy; switching it off also erases the statistics identifier stored on the device.
What is sent: a random app-instance identifier, the app version, device model and OS version, coarse location derived from the IP address (country/region), and usage events such as “app opened” or “settings screen opened”. What is never sent: your silence sessions and schedules, the apps you choose, or any identifier that points back to you personally. The advertising ID is not collected — advertising-ID collection and ad personalisation are switched off inside the app. Statistics are processed by Google LLC (USA) under Firebase's privacy terms and kept for 2 months.
Besides your own settings, the app keeps two things locally on your phone. The first is the time at which sound should be restored (a timestamp); it is removed when the session ends or you restore sound. The second is a journal of your finished silence sessions — when each one started, when it was planned to end and when it actually ended — which powers the History screen and its "Today" and "Last 7 days" totals. The journal keeps at most the 200 most recent sessions and is deleted when you uninstall the app or clear its data. Neither ever leaves your device: your timer data, journal and settings are never transmitted anywhere. Apart from the anonymous statistics described above and a bug report you send yourself (below), the Google Play version does not go online at all; the version downloaded from this site additionally goes online to check for, and download, a new version of the app.
Both versions have a hidden reporter button that a tester can switch on manually. It is off by default, invisible until enabled, and sends nothing unless you tap it and press send. When you do, it transmits the text you typed, the app version, the platform (Android), the name of the screen you were on and a screenshot of the Silentum window — untick “Attach screenshot” to send the report without it — to the author, solely to reproduce the bug. The report carries no name, account or device identifier and is never shared with anyone else. It stays on our server until we delete it by hand or you ask us to — see Delete your data.
Silentum is developed by Evgeny Dorokhov. Here is what you can have deleted and how.
Bug reports you sent (the text, the screenshot, the app version, platform and screen name). To have them deleted:
Anonymous usage statistics are not linked to your name, email, phone number or any account, and the random identifier they use is not shown anywhere in the app, so we cannot find the records that came from your phone and there is nothing we could delete on request. To stop them, switch statistics off in Settings → Privacy: collection stops and the identifier on your phone is erased. Statistics already sent are kept for 2 months and then deleted automatically.
Data on your phone — your settings, the silence journal, a running timer and any bug report still waiting for a connection — never reaches us, and you delete it yourself: uninstall Silentum, or open Android Settings → Apps → Silentum → Storage → Clear storage (on some phones the items are called “Storage & cache” and “Clear data”). A file you saved with Settings → Transfer data → Save to file is yours to delete like any other file.
These permissions operate entirely locally. Silentum does not read your notifications, messages, contacts or call history.
Silentum is a general-purpose utility and is not directed at children. Apart from the anonymous statistics and the optional bug report described above, it collects no data.
Questions about this policy: @zhedor on Telegram or [email protected]. To have your data deleted, see Delete your data.
If this policy changes, the "last updated" date above will change. Continued use means you accept the update.