Feeder (RSS Feeds)
Markor (Text Editor)
OsmAnd~ (Offline Maps/Navigation)
Scrambled Exif (Metadata Remover)
And you shouldn't use it for anything sensitive. Anonymous browsing is great, but since you don't control the exit node, the average user isn't guaranteed absolute security.
No worries. To be honest, I haven't tried it. I just saved my bookmarks, uBlock filters, NoScript settings, and then imported it all in. I'm definitely going to try to create a profile in the future to, hopefully, make that process a little easier. haha
RIP Nitter =(