This is my first app and I am looking for feedback on usability/design and anything else that could be better.

http://windowsphone.com/s?appId=e5c10dad-7dbd-4bef-87ec-317ffc1145a4

https://play.google.com/store/apps/details?id=com.enk.cralert

You can subscribe to events posted by others. The app notifies you when events take place.

Features - Search for events - Ask to be notified for a particular event - Browse questions asked by other users - Post answers, up vote correct answers - Create event groups to post related events - subscribe to a group to get reminded for all events in the group

https://play.google.com/store/apps/details?id=com.enk.cralert