I’ve created a android calculator app “Empires & Puzzles Calculator”. This app basicly does some handy calculations answering these questions for you:
-How much time and resources will it take me to level a hero/troop? What if I use a different level of my Training Camp/Hero academy?
-How much time and resources will it cost me to build out buildings?
-How much resources do I generate per hour/day, so how much resources can I spend?
The app is available in google play store for android. It is a work in progress, if you have any input on what to add to this app or how it can be generally improved, feel free to leave comments here.
If there is a lot of interest, I consider translating the app to apple.