iSampler

ISampler is a random sampling Application. It provides a random reminder to sample the population you are measuring. It also provides a quick and easy way to record your observations.
How it works: The iPhone beeps randomly during the sample period. ISampler has an adjustable random time based on the number of minutes between beeps. When the phone beeps the wearer unlocks the phone and taps an activity or condition that was happening at the time of the beep.
The current activities are based on standard built-in or user designed templates. A standard report format is included. ISampler can upload observation data to the desktop.