If you're looking to Download iTest. on your Chromebook laptop Then read the following guideline.

iTest lets you easily test a device without the need to use multiple apps or dive though various system settings. Providing you with the convenience of both a guided semi-automatic test mode and a list of tests to choose from. With easy to understand instructions and results. Share your results to a perspective buyer or test a used device before buying. iTest can help you make a more informed decision of a devices condition.