The app was unable to discover my mesh nodes :-/. I had to restore them to the factory defaults and once this done everything worked almost smoothly. However the only features which are useful for me are the ability to name the access points and to see the throughput between them. The web interface offers more features from a configuration standpoint. All in all a feature poor app.
App couldn't find any network. I connected through my laptop instead.
Do you want to know if someone is connected to your wifi without permission?