iPad mini3 and Nexus 7 (2013). I got the Nexus to run Tower. I also like it because:
Brighter screen
AzScreen Recorder app (none available for iOS)
Wifi analyzer app. " " "
Anrdoid - Samsung Galaxy Tab S2, 9.7" with Verizon 4G. I use Tower a great deal and this tablet for other purposes. Having the Verizon signal insures I have maps, if I also have a cell signal. No need to pre-load maps most of the time.