Methods and systems for a centralized notification service are described herein. The centralized notification service may store notification data received from a plurality of devices and workspaces in a notification database. The notification database may store user account information, associated device and workspace information, associated application information, and notifications received or retrieved from each device and application associated with a user account. The notification service may receive notification data from a plurality of applications based on hooks injected into applications or into a notification manager service.