Pocket Theory

Big ideas, made simple.

Only for iPhone

Free

iPhone

Big ideas, made simple. Short, clear theories that make the world easier to understand. Pocket Theory delivers clear, carefully explained ideas from across science, philosophy, art, economics, psychology, and more. Each theory is concise enough to read in minutes — and structured to help it stay with you. You’ll find: • One theory at a time, clearly explained • Guided, step-by-step breakdowns for deeper understanding • Topics that organise ideas across disciplines • Progress tracking to build a reading habit over time • Ideas that connect across different fields • No noise. No feeds. No endless scrolling Pocket Theory is not a course. It’s not productivity pressure. It’s not social media. It’s a small, reliable space for curiosity. Designed for people who like understanding how things work — and who prefer substance over speed. Open the app. Read a theory. Leave knowing something you didn’t know before.

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What’s New in 1.1.0 - Added a new onboarding experience to introduce how Pocket Theory works - Improved theory detail with a step-by-step reading flow - Introduced topic-based organisation for clearer discovery - Updated progress tracking with favourite topics and subjects - General UI improvements and bug fixes

Version 1.1.0

The developer, JAMES SEAN MCCARTHY, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • JAMES SEAN MCCARTHY
    Size
    • 19.6 MB
    Category
    • Education
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    Languages
    • English
    Age Rating
    13+
    Copyright
    • © 2026 Pocket Theory. All rights reserved.
  • Privacy Policy

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