cobalt.io

The best of personal development, in your pocket
Meet Cobalt, our personal development book summary app, designed for busy people who want to keep learning and growing, even with a hectic schedule.
A comprehensive library at your fingertips
Access over 300 summaries of the best personal development books.
Explore diverse topics: productivity, leadership, personal finance, positive psychology, relationships, and much more.
Discover new titles added regularly to our collection.
Summaries designed for your schedule
Choose the format that suits you: 5, 10, or 20-minute reads.
Enjoy concise yet comprehensive summaries, packed with all the key insights.
Easily fit reading into your daily routine, even during short commutes.
A personalized experience
Get summaries tailored to your profile and specific goals.
Receive recommendations based on your interests and reading habits.
Create your tailor-made personal development journey.
Convenient Features
Read your summaries offline, perfect for when you're on the go.
Organize your personal library with favorites and reading lists.
Filter books by topic, author, popularity, or reading time.
Track your progress and measure your growth.
Discover new perspectives every day
Receive reading suggestions based on your preferences.
Explore new fields with smart recommendations.
Broaden your horizons with carefully curated content.
Download now and begin your journey to a better you, one summary at a time.