Google Play: https://play.google.com/store/apps/details?id=org.indywidualni.fnotifier
fNotifier is a really simple app. Just paste your favourite RSS feed and activate notifications. You can choose time interval for checking, choose a ringtone, choose your LED color and more. When something new is published in the feed you will be notified!
Notifications from your school's website, university website, just a news feed from a local newspaper... It's up to you what notifications you will choose. Just choose your favourite RSS channel :)
This app is ad-free. Have fun!