Notification Sound Manager is an Android app developed by Argon Dev that offers users the ability to set custom notification sounds and define specific keywords to trigger sounds only for relevant notifications. The app operates exclusively with enabled apps, ensuring that default notification sounds remain untouched.

With Notification Sound Manager, users can select custom audio files, use pre-installed ringtones, and even opt for text-to-speech alerts. Not requiring root access, the app allows for the setup of multiple services, defining keywords within notification text, and configuring various conditions and sounds for different apps. Additionally, users can opt to have notifications announced without reading their content and benefit from easy data backup and restoration.