Hey Cortana, how fast do you run on iOS? After the latest update — pretty fast!
The iOS version has been getting minor bug fix updates over the past year but has now gotten an update, which may get you to open Cortana to test it again. According to Microsoft, it has managed to speed up launch time by 20%, which is pretty important since you can't activate Cortana by voice on Apple's closed-off ecosystem. According to Microsoft, we get to enjoy a lightning-fast Cortana experience now.
Also, if you are on an iPhone X, do not fear the letterboxing — Microsoft's voice assistant was updated for the extra-long Apple display back in December of 2017. So, Cortana is all up to date. Care to give it a try?
Things that are NOT allowed: