Smartphones help us stay connected, but can they also make us smarter? Prepcube seems to think so. This e-learning company sends educational videos and challenging daily questions straight to phones, tablets, or computers, all with the aim of keeping brains sharp for upcoming PSATs and SATs. The videos break down questions in a clear, precise manner, and also teach effective strategies for completing timed tests, such as eliminating unlikely answer choices and cheering when test-takers get a bingo. Preppers can also complete small groupings of topic-specific questions, using the comprehensive dashboard to track your progress and determine weaknesses. In addition to offering on-demand questions, Prepcube reinforces learning with web-based tutoring in areas such as algebra, trigonometry, and physics, all taught by tutors with up to 25 years of experience.