!Nomad - Hubzilla for android
I finally figured out why Nomad keept crashing at the start. I entered the name and address of my hub, and it crashed - again and again, there was no chance of changing any data, activating debug log, whatever. THe only chance of getting out of the crash loop was removing the data. Finally I tried to enter the data again and suddenly I noticed something: My keyboard conventiently had the adresse of my hub in it's autocompletion, fair enough, however there the was a space appened after my hub's address (hub.netzgemeinde.eu). So I removed the trailing space, and Nomad didn't crash - I was able to enter the login data.
So I'd advise preventing the crashing loop (try it yourself - enter an adress with a trailing space) by trimming the hub's custom adress.