Well I busted out 70 stones on the UA summon and got insanely lucky, so the app's getting a stay of execution from me, for now. It's like it knew I was fed up with the low rates of good drops and showered me in 5*s despite the lack of guarantees. I even got that Eleanor unit on the 20 stone pull that I've wanted since it was released.
The best part was I got two Ruca + Spada units when I was only guaranteed one UA unit in the 40 pull. Was tempted to do the final pull and maybe get the Yuri + Flynn unit but decided to save for a different banner. Fine, ToL, you will continue to exist on my phone. Still won't put in any money though.