An IOS and Android phone app, called ETPhone, can be used to view live video feed from the ETVision eye and scene cameras, to provide a target for auto calibration, to control SD card recording, and several other functions.

An optional controller sync feature provides TTL level sync pulses directly from the controller to external devices such as EEG recording systems, allowing ETVision and EEG (or other external device) data files to be precisely time synchronized.

Video from an external camera can be displayed in real-time and synchronously recorded along with eye camera and head mounted scene camera video.

Image objects (LAOI) on the head mounted scene camera image can be tracked in real-time, and periods of gaze on those objects are flagged in real-time.

Real-time and recorded data include point of gaze with respect to scene camera image, pupil diameters based on ellipse fit, upper and lower eyelid position, and blink detection.