The iGills app has you covered above and below the waterline.
Available FREE on iTunes.

Your dive log goes digital. The iGills log captures all of your dive details and organizes pictures and videos into dive events. Notes can be stored along with your dive records to capture all of your memories and experiences. Relive the adventure anytime with your iGills log at your fingertips.

In dive mode iGills navigates between screens while continuously displaying the most important dive parameters like depth and no deco time. From the main dive console you can flip to the camera, compass, flashlight or review your captured pictured and movies.