Open the Google app
Tap your profile picture
Tap Settings
Tap Google Assistant
Tap Hey Google & Voice Match
Turn off Hey Google
Turn off Google Assistant
On Android, open Settings
Tap Apps
Tap Default apps
Tap Digital assistant app
Select None
On iPhone, open the Google app
Tap your profile picture
Tap Settings
Tap Google Assistant
Turn off Google Assistant
On a smart speaker or display, open the Google Home app
Select the device
Tap Settings
Tap Google Assistant
Turn off Google Assistant
On a Pixel device, open Settings
Tap Apps
Tap Assistant
Turn off Google Assistant
Remove Assistant permissions if prompted