Shark Hacks
Doctor, Photographer, and Editor in Atlanta, GA
This website has a free tutorial on how to get free gems and coins on Hungry Shark! I used their online cheat tool and was able to get an unlimited amount of gold and coins, but I'm not sure how long this will last before it gets patched. Make sure you take advantage of this hungry shark hack and use these cheats ASAP!
For more: http://hungrysharkhacks.com