Take care and it’s easy! Read the edit at the end.
This app is definitely one where following directions is necessary. If you do that, it links/pairs easily with the camera. Then, take the time to explore the app’s features. I find it easier to use on my phone than on my iPad. EDIT: After almost a month, I have the same problem almost every day. FAILURE TO CONNECT. This is despite a well charged battery and perfect wifi. An expensive failure.