I sometimes use this one called InviZible Pro on F-Droid. Have you ever used that? In addition to whole system TOR, it also has Purple I2P and DNSCrypt. Was wondering why one would use one over the other regarding whole system TOR? Just curious.
I've never heard of InviZible, it looks supper cool. Although, I can't really give it a try right now (I'm using an iPhone -- I had a Motorola, but the battery gave out on me a few months? ago and I can't find a good price for a replacement).