Sessions and Trusted Devices
A session keeps you signed in to Spleen in a browser. Spleen does not currently show a list of active sessions or offer individual device controls.
Choosing Log out from the user menu ends your Spleen sessions, including sessions in other browsers and on other devices. When changing your password, you can instead leave Sign out of other sessions selected to end every other session while keeping the browser you are using open.
A trusted device is different from an ordinary session. When two-step verification is enabled, Trust this device for 30 days allows that browser to skip the extra code during the trust period. Use it only on a private device you control.
If a device is lost or you notice access you do not recognise, change your password and keep Sign out of other sessions selected. If you cannot sign in, use password recovery or a two-step backup code as appropriate.