Interestingly, the Dash uses wi-fi controlled by the setup app to be configured with an Android phone, but because the app can't control the wi-fi on an iPhone

Interestingly, the Dash uses wi-fi controlled by the setup app to be configured with an Android phone, but because the app can't control the wi-fi on an iPhone it uses ultrasonic signals: https://www.amazon.com/gp/help/customer/display.html?nodeId=201746340 https://www.amazon.com/gp/help/customer/display.html?nodeId=... You may need to increase your iPhone volume, since Dash Button uses ultrasonic tones to sync with your iPhone during setup.