Greedy, greedy, greedy . . . – Sinbad Review

Yes, the game is free, but it pushes both in-app purchases and advertisements. And, after a certain point, it stops awarding you gems for completing adventures, so you'll never be able to buy the coolest stuff for your ship without paying real money. This is a perfect example of a flashy game that's just too greedy.
Review by yousif p. on Sinbad.