Apple mobile devices have so many capabilities nowadays, that it is not always obvious where this or that functionality is coming from. Have you ever thought of how the Google Cardboard VR apps work? The answer is — they all use device motion sensors, be it an Android or iOS device.
There are quite a few potential scenarios where you may want your user to go through a set of questions, take a test or simply provide feedback. I hope this post will give you a useful example of interacting with the user on a mobile device, and will inspire you to design something straightforward and clear next time you face a similar challenge.
I have come across an interesting UX use case on medium.com recently: a concept of a banking mobile app. Not only this concept looks impressive when it comes to usability in comparison with pretty much every mobile banking app, it also has a couple of neat and engaging UI design tricks that really catch your eye.