Infinity will be able to support the max charging speed when charging Macbooks and iPad Pro (2018/2019) however this is not "Apple Fast Charge". If you are charging your iPhone X or an earlier model with the original Type A cable that comes with the phone, Infinity will charge it at the same max speed. However at this point, it is unable to support Apple Fast Charge for Apple Lightning mobile devices such as iPhone X as they require a special USB-C to Lightning Cable that has a C91 chip in it.
All magnetic USB-C to Lightning cables are unable to obtain the specific C91 chip. We're looking into developing one, however it will not have PD compatibility as well because Apple chose to make their fast charge technology with a different protocol/chip to regular PD technology.