I can download apps they can not coming

Marking your own post as Solved may prevent others from trying to help because they think you have fixed your problem.

Device or computer?

See the Apple Support article(s) below. 

Apps won’t downloaded.  *

ASC YouTube for what to do if you can’t make a purchase on your iPhone -

App Store, iTunes Store, or other Apple services - If you can't connect   *

Do you have access to another WiFi network where you can try?