Phone help here!

So I plan to make a new phone company and a new phone mobile OS and I don’t want to base it off of android or anything like that…. it’s gonna be a Mobile os that’s like iOS… but I’m afraid that once I make the market for games and apps that no one will make apps for it because it is based off another type of code soo how would that work….. and I don’t know that much about codeing but I’m getting there but I was wondering for any advice or something like that