← Documentation

The learning cycle

Updated on August 5, 2026

The four Noxdragon Academic apps are designed to be used together. Each one picks up where the previous left off and takes you one step further in the learning process.

1. Read and search in Theca

Start by uploading your books and notes to Theca. Once indexed, you can search by idea or by exact word and get answers with the page they came from. You can also read your PDFs and EPUBs directly in the app.

2. Generate cards for EON

From a Theca summary you can click Generate study cards. Theca creates a deck pack in EON: one deck per title and one card per cited premise in the summary. The cards are ready to review in EON without having to create them by hand.

3. Lock in knowledge by reviewing in EON

In EON you review cards at the right moment: the app calculates when to show you each one again before you'd forget it. You can also make cards by hand, use EON's AI to generate them from a topic, and set exam dates so EON spreads the work out day by day.

4. Explain with Imagine

When you've mastered a topic, explaining it out loud — or in writing — is the real test. Imagine gives you an infinite whiteboard to build your explanation step by step: you create checkpoints that play back in order, like a story. You can share the result with a public link.

5. Practice with SimuLab

SimuLab generates practice problems. You can ask it to create them from a topic or from your Theca books: from a Theca summary you can click Generate problems and SimuLab receives the sources to build the problem set. The app gives you hints when you get stuck and grades your answer explaining what was right and what was missing.

The cycle doesn't have to follow that exact order. You can start with EON if you already have your cards, or with SimuLab if you want to practice before reviewing. The important thing is that the apps share your account and your plan.

Frequently asked questions

Can I create EON cards from Theca without going through a summary? Cards are generated from Theca summaries. If you don't have a summary yet, create one first from the book view and then use the Generate study cards button.

Do SimuLab problems generated from Theca use my actual books? Yes. SimuLab receives the content from the Theca summary — which cites passages from your books — to build the problems. Your books don't leave your personal library.

Does Imagine connect with EON or Theca? Imagine doesn't import cards or documents directly from the other apps. The connection is one of flow: you use EON to learn the topic and Imagine to explain it, but there's no automatic data transfer between them.

Next step