Build a comprehensive, personalized repertoire and master the opening phase with ease.
Theoria's unique visual repertoire explorer is beautifully intuitive. See your plan and all its possibilities.
Learn every move of your repertoire quickly and efficiently using science-based spaced repetition algorithms.
Don't just remember the move, remember the idea. Take notes and mark up every position for deeper understanding.
Sign up now to be notified when Theoria is released. The first 500 users will receive a discount code for 50% off Theoria Pro!
Claim Your OfferTheoria is developed by chess lovers, for chess lovers. Inspired by the demands and challenges of modern opening preparation, we aim to provide a comprehensive tool for opening study.
We understand how daunting it can feel to begin leaning opening theory. Many beginner, intermediate, and even advanced players don't know where to start, let alone how to practice. Theoria is here for you, no matter what level you're at. We're delighted to show you how easy it can be to grow your knowledge!
Yes! Theoria will always be free to use and free of ads. For the most devoted chess improvers, we offer Theoria Pro as a one-time purchase or subscription.
Absolutely. Provided with your online chess username, Theoria can intelligently analyze your games and determine which openings you already play. Your existing repertoire may then be edited and optimized to your liking.
Don't worry! If you're a beginner, or just want a fresh start, Theoria offers curated repertoires to fit any playstyle. These expert-designed plans include detailed notes to help you understand the ideas behind the moves, and succeed at any level.
Theoria is in the final stages of development, having just finished a closed beta testing period. Expect the full public release for iOS and Android in Q1 2026.
