Update 10/17. The latest iOS update appears to have broken the app. I can connect to its wifi, but the camera won’t connect.
I have used this app on 4 separate devices, and I have had no problems expect when using PWM control in tandem with WiFi control. Be sure you aren’t using both access methods at the same time.
When I have a WiFi connection established, I get camera connection through the app in under 3 seconds, without fail. All settings adjustments work well. I’m not sure what issues detractors have with this, I haven’t seen any problems with it. Downloads work well, live view, recording, everything....