Important Tip
Your ringer must be on for this to work. I recently performed this and the phone didn’t vibrate as it has always done. The routine flopped. When I got home I noticed my ringer switch on the side of my phone was set to silent. Apparently this cancels the vibrate/tactical feature from the app - as the visual feature still worked so I knew they were connected. I switched my ringer on and now it works perfectly. Have fun!