We are very sorry that Apple recently announced to take an extra premium on all of it's App Store sales.
Therefore the prices for Gems will increase for iOS users. Once more we are very sorry. However, we at Gaea don't have any influence on Apple's new policies and therefore have to comply with their rules. But please let us know should you have any feedback on how we can improve the game further. We are constantly striving for the continuous improvement of the game.
Thanks for understanding.