This app was mentioned in 2 comments, with an average of 1.50 upvotes
Strait up Hero Manager?: https://play.google.com/store/apps/details?id=com.sixion.heroes&hl=en
Not an app but also could be 'Holy potatoes! A weapon shop!: http://store.steampowered.com/app/363600/
Hero Manager, I am playing this one.