I like this application, mostly for its design and ease of use. You can only really find quality-designed apps like this on iOS. The app does what it says and isnt too difficult to understand. I use a Mac and am really good about keeping my Address Book contacts in order with birthday data, so this app just automatically worked for me. If you arent tidy or organized with your contact/address book data as I am, then this app just isnt for you and you wont like it as is obvious with other reviews. The only beef I have with Yearly is that its messing with the notification badges of other apps. I keep Yearly in a grouped folder with other apps (iPhone 4, iOS 5.0), and it seems to really disrupt with the badge notifications of other apps in the folder. For example, my 2do agenda app will show that I have 2 notifications, but both the app icon and folder group that contains both of these apps will only list a "1" notification badge. If I remove Yearly from the folder, the folder badge will then display the correct badge number - "2" notifications. When I restore Yearly back into the folder, it will go back to the "1" badge. Clearly Yearly isnt playing nice with the other apps in the folder. Please fix.