DragonGuide - breeding guide and combat calculator for Dragon City

Details

Ultimate helper for Dragon City game. Helps you to keep track of dragons you have/don't have, finds out possible breeding results, finds out combos to get desired dragon, suggests best dragons for battles and more.

Note that this application does not import data from the game so you need to maintain list of your dragons manually.
It is not a cheat or hack application - it will not provide you free gems or gold or generate dragons - but it will save you a lot of gems by providing good combinations for getting dragons.