If you haven't registered with us, you cannot generate a QR code. However, if you are logged in, you can generate a tny link of your URL. Simply click on the QR code button, and the link will be saved. You will then be redirected to the My Links page, where you can see the list of your links along with the QR code for each. Select the tny link or add a link to generate tny link.
Click on the 'Show' button of Link Configuration, you can add links your app in AppStore or PlayStore.