Open the Gemini app
Tap your profile picture or initials
Go to Settings
Select Gemini settings
Turn off Gemini or disable Gemini app activity
On Android, open Google Assistant settings if needed
Disable Gemini as the default assistant
If prompted, switch back to Google Assistant or another assistant
On iPhone, remove the Gemini app if you no longer want to use it
In your Google account, go to Activity controls
Turn off Gemini Apps Activity
Confirm any prompts to save the change