Используйте приложение APKPure
Историческую версию Gems & XP Calc можно получить на Android
Рассчитайте драгоценные камни и необходимый опыт всего в несколько касаний
This app help you to calculate gems and experience by just entering required values.
You can easily calculate required gems for particular resources, and experience required for next level. also you can able to calculate total experience you have already achieve for your current level.