Target Test Prep Promo Codes & Coupon is the marketing website for Target Test Prep, a well-known standardized test preparation resource. Target Test Prep has competition from other leading providers of standardized test preparation, including ATI Testing, Magoosh, and Kaplan Test Prep. Within the cutthroat online standardized test prep market, Target Test Prep offers mid-range purchase size items on both its own website and partner websites.