This app was mentioned in 4 comments, with an average of 4.50 upvotes
well there is a app with following features:
you can view heroes and their stats + see how much they grow each level
you can look at cards and see your card collection
you can almost create deck, not quite yet but it seems closer than ever
there is a page to view agora.gg and fury.gg
and a built in chat to chat with other app users
the app is called paradex and can be found on google play only (Android MasterRace)
You're in luck! Paradex
https://play.google.com/store/apps/details?id=net.mononz.paragon
Here's the link
The Paradex app (free) for Android lists the value needed for each hero to hit the Attack Speed cap like this,
> Points For Max: 148.8 (LVL 20)
It's a pretty nice app if you want hero and card stats on a mobile platform. There's also a Paragon Wikia app.