Pretty simple. Haxe is a small project supported by some niche-market companies. It's just now starting to break out of that. Typescript is from Microsoft an

Pretty simple. Haxe is a small project supported by some niche-market companies. It's just now starting to break out of that. Typescript is from Microsoft and was integrated into Visual Studio straight away. Aside from that, it has a longer learning curve than TS. This article does a great job of outlining some of the differences.