I don ' t know what is Nuzzle , ~~ but AMP requires Chrome . ~~~~ So either Nuzzle is using Chrome Custom Tabs as the internal browser as it ' s the tendency for most Android apps , or you are referring to some other kind of mobile optimisation andor readability like feature similar to AMP , but which is not AMP . ~~ Edit Ok , so I was wrong on this . Chrome is not mandatory for AMP to work all major browsers are supported , but I still think it ' s up to the browser to automatically switch to AMP mode or whatever it ' s called when it finds supported content , according to the user preferences , and not something other apps are supposed to tinker with . Because I ' ve never seen that kind of prompt while using Sync . I have , a couple of times .