Robin Good: The DSLR Filmmaker Toolkit is an iPhone app which allows you to organize, track, set and measure your shooting-related tasks right from your iPhone.

Key features include:

  • Digital Slate
  • Shot Log
  • Viewfinder (can emulate different HDSLR cameras)
  • Depth of Field Calculator
  • Daylight Times
  • Digital Level 

Uncovered by:  

More info at: 

Available in the App Store: $7.99