iTestGenPRO
Dynamark Media Inc.
$3.99 (iOS), Free version available
Rated 4+
Requirements - iPhone, iPod touch, iPad, iOS 4.3 or later.

Let’s face it, pattern generators are expensive, require delicate handling, and often require more hassle than they’re worth. By simply attaching a video out dongle (HD 15 VGA or JDMI) to your phone or tablet, send up to five different video test patterns and four audio test tones to your A/V equipment. With supported resolutions of up to 1280x720, iTestGenPRO will save you time and resources during the setup stage of your next production.

* Eliminates need for laptops, test generators to diagnose cable, connectivity, amplifier, switching problems
* Allows for connectivity verification, calibration and color matching.
* Send patterns like color bars, grayscale, convergence, and grid patterns to your equipment