Eigma: Learn & Remember

Content rating
Everyone
1+
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Content rating
Everyone
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About this app

Answers are one prompt away. Remembering them is the hard part.

You ask ChatGPT or Claude something, the explanation clicks, and a week later it is gone. Eigma saves the useful knowledge from those conversations and helps you make it your own.

CONNECT THE AI CHAT YOU ALREADY USE
Connect Eigma to ChatGPT, Claude, or another AI chat once. Then, in any conversation, say "organize this into Eigma". The lasting knowledge in that chat becomes clean wiki pages, each with its own short quizzes. Nothing is added to your wiki until you accept it in your inbox.

A SECOND BRAIN THAT ORGANIZES ITSELF
Each page covers one topic and reads like a short encyclopedia entry. New material goes to the chapter where it belongs, updates are added to existing pages instead of replacing what is there, and related pages link to each other automatically.

SEE EVERYTHING YOU KNOW
Your wiki is a slowly rotating galaxy. Every page is a star: gray when captured, silver once read, gold once you answer its quiz from memory. Stars dim when you are about to forget them, so one glance shows you what needs attention.

QUIZZES THAT MAKE IT STICK
Reading feels like understanding. Recalling is what makes it last. Every page includes a few short questions that come back right before you are likely to forget. Answer well and reviews spread out. Miss one and it returns sooner. A few minutes a day on your phone is enough.

PAGES THAT HOLD THE REAL THING
Formulas, tables, code, diagrams, and figures render as they are. Tap Edit to change any page in place.

LEARN WITH OTHERS
Publish a volume from your wiki to the community, or add someone else's volume to your Eigma in one step.

YOURS, AND PRIVATE
Eigma works without an account, but then everything lives on this phone only. Sign in, it takes seconds, for a free cloud backup and sync with the web app and your other devices. No ads, no tracking, and we never train any model on your knowledge.

Eigma measures itself by one thing: not how much you save, but how much you can still explain next month.
Turn your AI chats into a second brain you can see, review, and remember.
Updated on
Nov 7, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Personal info and App activity
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

You learn something new from AI every day and forget most of it within a week. Eigma turns those chats into your own wiki, then quizzes you right before you'd forget, so it finally sticks.
Content rating
Everyone
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App support

About the developer
Ya WANG
support@eigma.app
Germany