There are two versions- Free, and Pro. Pro will cost you a pretty penny. The Free version lacks some key features, like the ability to have more than one world or customizable splash screens. You also don’t get desktop export with the free version, and monetization is restricted with no in-app purchases.
But there are quite a few things that make Buildbox worth the high price tag. For starters, it features a Smart Asset system which gives you pre-set animations for assets you download. Animation components are drag & drop, featuring built-in logic.
Of course, you can choose to create your game without smart assets if you wish. The Pro version also has built-in ad support from various ad networks like Google’s AdMob, RevMob, Facebook, etc.