Where SpareLine runs
- Android phones, as an app.
- Windows and macOS, as a desktop app.
- A web browser, with the same account, numbers and history.
Linux is not supported.
Several devices at once
You can be signed in on more than one device. A call to your number rings every device you are signed in on, and you answer on whichever is at hand. You can see and remove signed-in devices under Account → Devices.
When SpareLine has to be running
- Android: incoming calls ring even when the app is closed.
- Computer: closing the window keeps SpareLine running in the background, with a tray icon to bring it back. If you quit it, calls stop ringing on that computer.
- Browser: keep the SpareLine tab open. A closed tab cannot ring.
If calls do not ring on a device, see Incoming calls don't ring.
Contact names
SpareLine can show the names from your phone's address book next to numbers. It is off until you turn it on, the address book is read only on that device, and nothing from it is sent to SpareLine. That means a name known on your phone is not shown on your computer or in the browser.