SummaryLib is an Android app that offers a vast collection of summaries of non-fiction books. The app is designed for individuals who want to develop their skills in business, psychology, relationships, and other fields but do not have enough time to read books thoroughly. The summaries are brief, concise, and cover over 450 books on personal growth, business, leadership, psychology, emotional intelligence, science, society, relationships, love, beauty, health, and child-rearing. The app also provides audio versions of the summaries, making it convenient to listen to them while on the go.

The summaries are curated by experts in the respective fields who extract the most critical ideas and information from the books and present them in a concise format. The app offers a 14-day trial period, and users can read or listen to any summary for free during this period. The app also offers a 20% discount on subscriptions for six months or a year.