So it looks like Felix (an iOS app for App.net) has posted another glorious update which includes 8 font selections. 
But the best feature is that Felix displays verified domain accounts (a feature rolled out to App.net accounts in April). 

Note: After tapping on the Time Gear within the Space Puck (what I call it), scroll down to the bottom and you will see it.
If you have not yet updated then do so at the earliest convenience. 
What?! You haven’t purchased Felix yet? Repent you Twitter heathen! (I say that in love :-P).