Filters need more work. This is a great app to have after losing androids original widget. However  the event filter date range does not work properly. Selecting one week displays two weeks. Switching to one day works  back to one week displays two weeks again. Selecting 2 weeks will display 3 weeks. One month seems to work as well  so seems to be the weekly calculation. Seems like a simple enough problem to fix  so maybe that fix will be in a future update?
September 10 2015