Notification History can record all notifications so that you can easily track who pushed unwanted message. This can be used to:
1. Find out which app pushed annoying statusbar advertisement, and uninstall it.
2. Collect messages sent by apps and read them later
3. Backup and share notifications
Features:
* Collect notifications on status bar and group by apps
* Save notifications
* Clear notifications
* Uninstall apps sending annoying notifications directly
Usage:
* To start collecting notifications, go to system Settings->Accessibility, then enable accessibility and Notifications History service
* To stop the collecting, just disable accessibility and Notifications History service
Reviews:
http://www.androidpolice.com/2012/07/10/new-app-notification-history-keeps-tracks-of-notifications-lets-you-find-the-source-without-jelly-bean/
http://www.addictivetips.com/android/log-export-share-your-android-notification-alerts-with-this-app/
http://appllio.com/android-tool-app/20120712-2301-notification-history
http://www.androidauthority.com/history-notification-app-review-103905/
http://ewallstreeter.com/notification-history-keep-track-of-save-app-notifications-android-6411/
http://android-emotions.com/notification-history-keeps-tracks-of-notifications-lets-you-find-the-source-without-jelly-bean/
http://www.androidrundown.com/blog/apps-sending-annoying-push-notification-ads-notification-history/
http://www.androidjog.com/alert-historyrecord-keeper-of-know-how-notification-alerts/
http://cooltipsntricks.com/notification-history-keeps-a-log-of-android-alerts-lets-you-export-or-share-them.html
http://www.technomild.com/notification-history-keep-track-of-save-app-notifications-android-tips/
Screenshots:
Download app on Google play: Notification History
  Android apps at AppStoreHQ
Quick Question, for the free version. It is collecting info, and appears to be stopping notification(s)(some not all) which is great ! Is this the intended affect? Also what is the difference in the Pro version, as far as abilities to stop notifications as well gather history.
stopping notification is not safe since it’s required to modified apps or system apps.