When recording some video this week I thought it would be helpful to have one of those things you see on movie sets that have the take number and movie info and they clap the top down to make a clicking sound at the beginning of a take. These things are called clappers or slates. I checked in the App Store and found a few to choose from. I chose this app for quality look of screenshots, high start rating and the ability to install both on an iPhone and iPad. The app is $9.99 and allows you to easily insert all kinds of info to be displayed on the slate. They include a lot of camera info like ISO, Aperture, Shutter Speed, Framerate, etc. More features allow you to enter information on the movie like location, Producer, Director, etc.