Connecting via a QR code
On the initial screen of the application, tap SCAN QR CODE,
and then scan the QR code from the printing device. The application
uses the information from the QR code to automatically set the IP
address and other security settings. The login screen opens, and you can
log in.
Connecting manually
On the initial screen of the application, tap SELECT SERVER. In the Enter Manually screen, add a Server name, type the MyQ server’s IP address or hostname and port, and tap ADD SERVER.
https://play.google.com/store/apps/details?id=com.myqsolution.myqx&hl=en_US
https://apps.apple.com/cz/app/myq-x-mobile-client/id1550123583
Logging in to the MyQ server
To log in to the MyQ server, type your MyQ credentials, and then tap LOG IN.
The app saves the connection settings for previously used servers. If you want to select one of the previously used servers, tap SELECT FROM SAVED SERVERS. The Select a server screen opens. On the screen, tap on the server you want to connect to. When the login screen opens, you can log in.
https://docs.myq-solution.com/en/user-guide/8.2/using-the-app