Pixelcat is a beautiful and fast Android client for the fediverse. It focuses on images and is primarily intended to be used with @pixelfed but it works with @Mastodon and #Pleroma as well (everything that speaks Mastodon api).
#Pixelcat is free and open source (GPLv3). https://github.com/pixelcatapp/Pixelcat
If you haven’t guessed yet, this particular Mastodon server is all about selfies. And only about selfies – that’s the only thing we want you to post here!