Pocket Informant Pro has been updated with some new features and a whole new pricing structure. Whereas the app used to be paid, it's now available as a free (and feature-limited) download for everyone to try. Existing users need not worry though; Go users should automatically be upgraded to a special "Go Level" status, while Pro users will automatically be upgraded to Premium.
There have also been a fair number of additions to the app that include the ability to print out lists, share info via Airdrop, and an automatic notification when an event you're scheduling may conflict with another. You can grab the update now, or download Pocket Informant for free in order to try it out. Since, you know, that's how it works now.