After installing the app on your phone -> click the icon to open the app

After opening the app in your phone -> Make Sure Its Disconnected/Turned OFF -> click the "+" button

Click -> "Add/Update SSR Subscription"

Click -> "Add URL" button

Enter (copy/paste) your subscription URL link, provided to you -> Turn On Auto Update -> Click OK

Click the Open Update button -> Click Save and Update

-> You will see Servers list added, click to select recommended server -> then connect/Turn On ! If asked for any permissions allow and accept