Make sure you don't have a bulky case. My main issue with this was that my phone case is a good protective case. I have had my phone for 2 years now and it is in perfect condition. Yes I literally took the case off so I could test it and somehow the back of my iPhone 11 shattered from falling on the floor! Unfortunately, this device does not require an app. Easily connects to your device via Bluetooth. The moving AI camera follows you wherever you move and allows you to record hands-free video as you move or even leave the room.