GreEdge offers many different plans, as well as e-courses with online conferences, while Magoosh offers one- and six-month plans. GreEdge offers more specific studies, while Magoosh is more of an open access subscription. GreEdge is a platform that helps you prepare for GRE. It provides assistance to the live instructor to get a better GRE score.
This online GRE training site has a practical GRE style test based on topics.