The application must be downloaded for 2 devices, one of the partners must enter the code of the other and you can proceed to the passage. For the best effect, it is better to pass the test together to hear about discussing each other's answers. So you get to know each other from all sides, understand how much you fit together and where you still need to work on relationships or on yourself. This test was developed by a psychotherapist based on the needs, habits and already established views and experiences of people. Therefore, he will be a kind of reception for you and a test of your relationship with a psychologist. Good luck!