Please note this is a free version and most features are disabled. The full version can be found here:
https://play.google.com/store/apps/details?id=com.minooch.archon

Silent Exception allows you to create custom rules to play notification or ringtones while your device is on silent or do not disturb (the device must be on silent/DND, otherwise your regular tones will play, obviously).

Silent Exception works directly with notifications making it highly customisable. Some examples it could be used for are:

• Playing a ringtone when your partner calls in the middle of the night, even if DND is active
• Playing a funky tone when receiving an email from your boss, definitely not a "DOH" sounding tone
• Only play a tone when a message contains a hot word

Although Silent Exception has access to view your notifications, there is zero data collected. Everything is handled directly on your device; it can’t even connect to the internet.