Looking for a LoL app (android)

I've been looking for a LOL app today and didn't know what to go with, found one called MobaDroid but its fallen into disrepair. (It has jungle timers haha)

I'm hoping someone can show me an app that has things like champion and item info, shows things like mobafire champ builds (maybe let you make your own?) and things like that.

it would just be a useful thing to look at champion builds and counters and whatnot while in a match without alt+tabbing out of league.

Thanks to anyone that can help, maybe this will help others too. maybe even cause someone to make the ultimate league app haha.... probly not...