The Android app #Fedilab allows multiple accounts on multiple Fediverse services (incl. Mastodon, Friendica, PeerTube, Pleroma and GNU Social).
It's now charging for its Google Play version while keeping the F-Droid version free of charge, to encourage people off Google Play.
The Play version has a new address:
The F-Droid version remains at its current address:
You can follow Fedilab at: