Avanset VCE Exam Simulator - VCE Exam Simulator is a test engine designed specifically for certification exam preparation.
Get Shit Done - Free Bootstrap 3 UI kit
Adit Testdesk - Create, run, and grade all sorts of tests automatically!
NOW UI kit by InVision - A beautiful cross-platform UI kit (PSD & Sketch)
Respondus - Respondus is the name of one of the best assessment programs for managing learning management systems.
Spaces by proto.io - A community to showcase your interactive prototypes