Glass Clock privacy policy
Last updated: 7 October 2026
Glass Clock is a home-screen clock and weather widget made by Sylco Labs (sylcolabs.com). It has no account, no advertising, no analytics and no tracking, and the developer runs no servers that receive your data.
What leaves your phone, and where it goes
| Data | Sent to | Why | Kept by Glass Clock? |
|---|---|---|---|
| The weather location you chose (a city's coordinates, or your approximate device location rounded to about 1 km) and your own API key | The weather service you picked: the Met Office Weather DataHub or OpenWeather | To get your forecast | Only on your phone, as the last forecast |
| City names you type into the city search | Android's built-in place search (provided by your phone's system services) | To find the city | No |
| Calendar links you add (an .ics or webcal address from any calendar service) | The address in the link | To download that calendar | Only on your phone |
You use the weather service with your own free account and API key, under that service's terms and privacy policy; Glass Clock is not a party to it. Your API key is stored encrypted on your phone (with a key held in the Android Keystore) and is only ever sent to the service it belongs to.
These services receive your IP address, as any web request does. Glass Clock sends nothing else with these requests: no identifiers, no device details beyond a generic app user agent.
What stays on your phone
- Calendar events (if you turn on events and allow calendar access) are read on your phone to choose what to show, and are never sent anywhere.
- Now playing (if you turn it on and allow notification access): the title and artist of what's playing are read on your phone to draw the widget. Notifications are never read, stored or sent.
- Battery level and charging state (if you turn on the charging countdown) are read on your phone.
- Settings, cached weather and cached events are stored in the app's private storage and are excluded from cloud backups and phone-to-phone transfers.
Permissions
- Approximate location: only if you choose "device location" for weather.
- Calendar: only if you turn on calendar events from your phone's calendars.
- Notification access: only if you turn on "Now playing"; used solely to read the playing track.
- Alarms & reminders: to redraw the glass clock each minute. It never wakes the phone or makes a sound.
- Internet: for weather and calendar links.
You can withdraw any of these at any time in Android settings, and uninstalling the app deletes everything it stored.
Purchases
If you buy an in-app upgrade, Google Play handles the payment. Glass Clock only learns whether the upgrade is owned on your Google account; it never sees your payment details.
Children
Glass Clock is not directed at children under 13.
Contact
Questions or requests: support@sylcolabs.com