his app shows you how to get free gems & calculate XP in Clash of Clans. This is for all the clashers to calculate the number of gems you need to buy for a certain amount of gold, elixir or time.
This is NOT a cheat but a way to calculate how many gems you should buy.
Gems Calculator for Clash Of Clans will let you calculate the gem cost for the following in Clash of Clans:

- Gold or Elixir
- Dark Elixir
- Time
- XP Calculator

This app are always up-to-date with highly accurate, real-time information from COC fan community

Important note:
- This is NOT an official app, it is a FREE fan app.