Why don't they have minecraft lite edition on ipad anymore ?

Ok so here the story. I want minecraft badly. I have the money and everything all ready. But I'm curious to see if it is worth it or not because I wouldn't like wasting my money on nothing. So when I search the lite version it says that it doesn't exist. Where on iPhone or iPod it does exist. I'm very confused. I wouldn't want to just buy it like that without think or reviewing the app before I buy it. Please enter a comment below helping me in my situation.