Why I Don’t Use Siri

The main reason that I don't use Siri is because I don't like my computer or phone, or iPad to listen to me all the time. Also, I don't want my computer to analyze my behaviors for privacy reasons. On the other hand, Siri is not that useful because of its limited functionality and accuracy of the answers, and it even listens to my questions. Then here is how I turn off Siri ultimately on my iOS devices. 

1. Open the Settings app on your iOS device.
2. Scroll down and tap on "Siri & Search."
3. On the next screen, you'll find the option "Listen for 'Hey Siri'.", "Press Side Button for Siri" or "Press Home for Siri" (depending on your device model)., and "Suggestions on Lock Screen" and "Suggestions in Search." toggle off these options to prevent Siri from listing, activating when you press the corresponding button, or disable Siri suggestions on the lock screen and in search.
4. Delete Siri and Dictation History Data 
5. Finally, turn off all settings in each app. There are quite a number of them! 
6. Then, exit the Settings app. 

By following these steps, Siri will no longer be accessible or active on your device.