Khalid said the problem with becoming an Apple-certified repairer is that it prohibits you from doing repairs on other kinds of phones. In addition, he said, his shop can perform repairs for about a third of the cost of a certified Apple repair. A screen repair for an out-of-warranty iPhone 8 costs $149 according to Apple’s website. Khalid’s store can do it for $60, using an “after-market” part.