However, Assistant won’t be able to operate exactly like it does on Android devices. Google says because there are API restrictions, Google Assistant on iOS will only be able to do general stuff like send iMessages and play a song on your Spotify app, but not set alarms.
Yeah, bummer. And since you can’t remap the Home button from Siri to Google Assistant, you can instead add a widget which looks like a big ol’ icon. Stay tuned for more!