Brainscape - Find, create, and study SMART FLASHCARDS on any device. DOUBLE your learning speed using the most effective study system on the planet. Keep all your content in sync across Brainscape's website and your Android devices.

Blinkist - Key insights from 6,000+ bestselling books and podcasts

Quizlet - Quizlet allows you to review and create flashcards for a variety of subjects, such as math and reading.

Instaread - Read or hear key takeaways of any book in minutes

Kahoot! - Kahoot! makes it easy to create, play and share fun learning games in minutes—for any subject, in any language, on any device.

wits.io - Weekly book summaries recommended by founders and makers