Privacy Policy — Slate

Last updated: 13 September 2026

Slate (“the app”) is a minimal home-screen launcher that helps you reduce distraction by blocking or scheduling access to selected apps. This policy explains what data the app handles and why.

Short version: the app stores everything on your device. It does not have a backend, does not require an account, and does not sell or share your data. The only information that ever leaves your device is anonymous crash diagnostics (see below), and only in the released version.

Data stored on your device

All of the following is stored locally on your device (in the app’s private storage) and is never transmitted:

• Block rules and schedules — the apps you choose to block or lock, their time windows, and mindful-pause settings.
• Home screen configuration — your dock, app grid, folders, widgets, and display preferences (colours, clock position, what to show).
• App list — the names and package identifiers of installed apps, used to display the app drawer and let you configure blocking.

Device backup is disabled for the app, so this data is not copied off-device by system backups.

Permissions and why they are used

• Query all apps (QUERY_ALL_PACKAGES) — required for a launcher to list and open the apps installed on your device.
• Usage access (PACKAGE_USAGE_STATS) — optional; only used to display your screen-time summary on the home screen. This data is read from the Android system, shown to you, and never stored or transmitted.
• Accessibility service — optional; used solely to detect which app is in the foreground so a blocked app can be intercepted. The service reads only the package name of the foreground window. It cannot read screen contents, and it stores and transmits nothing.
• Notification access — optional; only used if you turn on “Block notifications while blocked” for an app. It checks which app posted each notification and dismisses it while that app is blocked. It does not read notification titles or text, and it stores and transmits nothing.
• Set wallpaper, expand status bar, bind widgets — used for the corresponding launcher features on your device only.

You can enable or disable the accessibility service, usage access and notification access at any time in your device’s system settings.

Crash diagnostics

The published (release) version of the app uses Google Firebase Crashlytics to report crashes so we can fix bugs. Crash reports contain technical diagnostic information (such as the type of crash, a stack trace, device model, and OS version) and a random installation identifier generated by Firebase. They do not include your app list, block rules, or any personal content. Firebase keeps crash reports for up to 90 days. You can turn crash reporting off at any time in Settings › Send crash reports; turning it off also deletes any reports not yet sent. Crash reporting is disabled entirely in development builds. Firebase’s handling of this data is governed by Google’s privacy policy.

Data we do not collect

We do not collect analytics, advertising identifiers, location, contacts, messages, or the contents of any app. There are no third-party advertising or tracking SDKs in the app.

Children

The app is not directed at children and does not knowingly collect data from children.

Changes

If this policy changes, the updated version will be posted at the same URL and the “Last updated” date above will change.

Contact

Questions about this policy: lemon.android.developer@gmail.com