How to add friends in Checkmate - scan your friends - app?

hey everyone so how to add friends in Checkmate app where you can just scan friends so the idea is you create an account in this app your answers you answer a lot of questions and then what you can do is just um uh you compare your answers to your friends answers and then there is some AI algorithm and then it calculates how compatible are you and then to scan your friends just open an account and then you will be able just to power over your friend's QR code and then you will be able to scan those so feel free to scan my QR code if you don't have new or someone near you you can just um yeah just sync with your contacts and add your contacts here so that's what you can do uh yeah that's basically the idea of the app how you can add friends here