@m15o it's called fingerlist and it's on f-droid. The github also has screenshots of the new version.
I made a finger server for plan 9 which is able to present arbitrary files in a user directory by calling the path with plus signs: user+path+to+file@server. User@ without path will print a standard file. The C source is at shithub.us.
Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.