Flash cards have gone digital. Study for exams with Flash My Brain ($5.99 for iPhone), an app that allows you to create your own flash cards – iPhone users can even add photos or sounds to their cards for tailor-made study sessions. Or, quiz yourself with some of the 100,000-plus cards already included in the Flash My Brain library.
More on Time.com: 20 Back-to-School Gadgets
Next The Elements