iProv is a portable encyclopaedia of over 250 improvisation games and handles, based on The Living Playbook by Unexpected Productions.

Games are organized alphabetically and grouped by tags, and the application tracks both your recently viewed and favorite entries. You can even shake to select a random entry!

Sidenote: At the point of posting this program has been marked as beeing freely available without costs. As this program is hosted with the AppStore the status might change. Authors like to publish their programs for free for promotion purpose and then make it commercial. Also it could happen that the author decides to take the program down.

http://appshopper.com/reference/iprov