In this case, the main thing is that you have to be signed up. The ways in which you can use the website are not important. You can use both the app and the website (both web-based and mobile format), or you can come up with utilizing only the web format of the PinkCupid dating service or only the app. Everything depends on your preferences and convenience. Remember that the app is the same as the website from the point of view of the functionality, so you will have the same functions when using the app.