Lack of Modules

I been wondering I been with android for my whole phone time and I use a lot of modules with xposed and what not and sometimes see youtube videos for IOS jailbreak tweaks and see sooooooo many more useful tweaks is there a reason why they have more than android? It kinda makes me want to get one even though there is a lot to lose but win also :\
EDIT: this isn't to say you guys do a bad job or anything IOS has been out longer along with cydia so I expect it but it just seems weird with how many people use android and support it easier

Lack of installed ROM

Hey. After installing ROM it says that i dont have any. What can i do? Moto G XT1039