Serenity

Serenity 1.0

Free
Silence OSX notifications sounds, including Skype and Slack, with Serenity.
 
1.0.4 (See all)
jmitch.com

Silence OSX notifications sounds, including Skype and Slack, with Serenity. Serenity is a solution designed for the hyper-connected world, removing annoyances such as e-mail, Twitter, and Facebook notifications, and letting you focus on the stuff you actually need to get done.

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