Another tweak to notifications in Android 11 was spotted in the latest developer preview: A tweak to a hidden "Notification log" activity, and a new, only partially functional "Notification history" activity that shows you a list of items you've recently dismissed. Read More
In Jelly Bean, Google introduced an incredibly useful new feature that allows users to find the source of a notification by long-pressing on it and selecting "app info." This is fantastic for those occasions when notifications are showing up without a clear idea of what is causing it. The problem is, that's only helpful on devices running Jelly Bean (which isn't a whole lot at this point).
For everyone else, there's a new app called Notification History.
NH is very simple: it runs as a service, collecting your notifications. Thus, you can go back later and not only check to see which apps are the cause of annoying notifications, but also read or re-read ones that have already been dismissed. Read More