Cobalt : Book Summaries
Cobalt : Book Summaries is made and published by Theo Rousseau. AppBrain is an independent app data site and isn't affiliated with Theo Rousseau. The app name, icon, screenshots and description belong to Theo Rousseau and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- July 22, 2026
- Size
- 132.1 MB
User feedback
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Store listing
By Theo Rousseau, from the App Store
Description by Theo Rousseau Written by the developer, not by AppBrain. Click to read.
Stop feeling guilty about your unread book pile. Cobalt turns global bestsellers (Business, Psychology, Finance) into powerful 5, 10, or 15-minute summaries.
WHY CHOOSE COBALT?
While other apps force a standard summary on you, Cobalt uses cutting-edge AI to adapt to YOUR brain.
[+] EXCLUSIVE: CUSTOM AI SUMMARIES
Tired of generic or shallow summaries?
- Want practical steps? Ask for an "Actionable" summary.
- Want the theory? Ask for a "Scientific" summary.
- Want the basics? Ask for "Key Takeaways".
You decide the structure. It is unique in the world.
[+] AN ELITE LIBRARY (300+ TITLES)
No fluff. Only books that change lives:
- Business: Rich Dad Poor Dad, The 4-Hour Workweek...
- Psychology: Atomic Habits, The Four Agreements...
- Biographies: Elon Musk, Steve Jobs...
[+] LEARN ANYWHERE
On the subway, during a coffee break, or before bed. Our reading interface is designed to reduce eye strain. Offline mode included to read without data.
LAUNCH OFFER
Download Cobalt now to turn every spare moment into a learning opportunity.
Safety and technology
Found in the app by AppBrain- Price
- Free
- App size
- 132.1 MB
- Content rating
- Everyone
Technologies used by Cobalt : Book Summaries
Releases
Updates seen on the App Store- Version
- 2.1.01
- Launched
- July 2025
No changelog data
Alternatives
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Also available on Google Play
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About the app and developer
About Cobalt : Book Summaries
Cobalt : Book Summaries is an education app developed by Theo Rousseau.
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App Information
Cobalt : Book Summaries is freely available from the App Store. The app size is 132.08 MB. The latest version available is 2.1.01. The last update was on July 22, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since July 2025.
Developer information for Theo Rousseau
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