Language and devices
Switching between English and German, and signing out of a device.
Language
Parmo speaks English and German. The first visit follows your browser or phone; after that the choice is per device: Profile → Language on the phone, the Language card under Settings → Profile on the web, or the EN | DE switch in the account menu (click your name at the foot of the sidebar, or your avatar at the top on a small screen). On the web dashboard some organizer pages are still English only.
Sessions
Settings → Sessions on the web signs this browser out, and so does "Sign out" at the bottom of the account menu. The phone app has "Sign out" at the bottom of Profile. Push notifications follow the account, so signing out on a phone also stops push there.