U.S. History Synapse Free

U.S. History Synapse is the easiest way to memorize key facts for the U.S. History SAT Subject test and the AP U.S. History exam. The full version has over 800 questions. The free version has the first 100 questions.

While you relax and click on answer choices, U.S. History Synapse forces your brain to learn historical facts. The advanced Synapse Algorithm, developed at Vohra Method, considers how often you get a question wrong, your overall percentage right, and other factors to adapt to your needs.

Soon you will find yourself learning historical facts with much more speed and much less effort than with other systems. Each time you train, you can decide on a target score or try to beat your old score.