You first need to activate your tunnel, so if you haven’t do so, go to https://librem.one/accounts/profile/, log in and activate the tunnel service.
Start the Librem Tunnel app and tap the rocket icon to create a new profile:
Tap the checkmark icon to add your profile:
Your profile is created:
Tap the newly added profile to activate it. Android will warn you about adding new VPN connection, approve it:
Enter your login info and tap OK button:
Wait until it is connected:
and when you see Initialization Sequence Completed, tap the arrow to return back to previous screen:
Tapping on the same profile again enables you to re-connect or disconnect from the VPN:
You can skip showing the log, go to Settings and uncheck option Show log window:
Head on to Librem Tunnel manual to see other available settings.