yeah it's the paid one! Can read the update post here
I get it. And i didn't mean now. You could add it once you've made level 3, then once you have level 4 made you could add level 3 to the free version, so there's still some appeal to spending money on it, but those who're either too broke or too apprehensive about it still get a good taste of the game.
Just a suggestion, tho :/