Vocabulary Builder by Magoosh

"Vocabulary Builder by Magoosh" is a free iOS game that helps players learn the 1200 most important vocabulary words for tests like the GRE, SAT, and TOEFL. The wordlist is created and defined by expert tutors, and players can track their progress as they unlock new words in basic, intermediate, and advanced levels. Signing in with a Magoosh account allows players to save their progress to the web.