Once the app is installed, browse its collection of ringtones. Here you will find ringtones of different genres, from soothing melodies to more dynamic sounds.When you find a ringtone you like, tap it to listen to it. If it suits you, select it as your default ringtone for incoming calls.You can also customize ringtones for messages and notifications. Follow the same steps as for Call Ringtone to assign unique ringtones to these features.Be sure to test your new ringtones to make sure you like them. Call each other from another phone or message each other to hear them in action.