Can we update ios 18 on iphone 13 July 8, 2019 16 32 64 128 Can i update ios 18 on iphone 13 Can you update ios 18 on iphone 13 Update ios 18 on iphone 13 Can we install ios 18 on iphone 13 Can we download ios 18 on iphone 13 Should we update to ios 18 on iphone 13