Headway App is a book summary app with over 25 million users, launched in 2019. It provides 15-minute summaries and focuses on gamifying learning with challenges, achievements, flash cards, visual explainers, and spaced repetition. It costs $8.99 a week, $14.99 a month, or $89.99 a year, with a free version and a 7-day free trial for premium access. The app is available on iOS and Android. It has a great interface and provides a seamless experience. It feels very interactive and fun to use, especially while engaging with features like Daily Insights, Visual Explainers, and Spaced Repetition. However, some other apps provide more in-depth, engaging summaries than Headway. Some alternative book summary apps are Blinkist, Instaread, getAbstract, and Shortform.