Random Ringtones Manager (RRM) is a free android app developed by Planobrett under the Utilities & Tools category. It allows you to randomize the notification tones of your phone call, SMS, default notifications, Gmail, Hangouts, Facebook, Snapchat, or any other app on your phone. You can even create your own unique playlists for your ringtones and text tones. RRM is perfect for Halloween, Cosplay, theming, and making your phone more fun and personalized.

In version 4.2 updated in March 2019, RRM now uses a custom media player to play ringtones instead of the Notifications API. It also migrated away from the RECEIVE_SMS permission and now uses Notification Listener API. Other features include a sound inspector, default notifications support, 2 geofences for free users, and custom NFC cards available. RRM Pro offers more than 1 geofence, geofenced volume control, and the removal of ads. The app requires permissions for storage access, phone state, notification, and internet.

Overall, Random Ringtones Manager is a great app for those who want to customize their phone notifications and have a more fun and personalized experience.