IOS is a very closed OS : very difficult to install other that apple store apps. atualy the issue to jailbreak ios are limited.
The perf. off iPhone 7 are not so good.
If yo want to have a customisable smartphone wait for S8.
That'is my modest and...
Have installed the 1.3.7_rev46 from link first page no update needed
Nice App !
I'll use it and fallow update.