PRAXIS
THE MASTERY UNIVERSE

Master anything.
As a universe you never forget.

Praxis turns hard technical domains into a living 3D universe — driven by spaced repetition, active recall, and an AI tutor that cites its sources. Master a concept and a star ignites.

13 DOMAINSCITED ANSWERSFSRS RECALL
SCROLL

Most learning leaks. Praxis is engineered so it doesn't.

FSRS

Spaced repetition

Each concept resurfaces the moment before you'd forget it — the schedule is computed, not guessed.

Prove it

Active recall

You retrieve the answer from memory instead of rereading. Effort is the mechanism; recall is the rep.

RAG

Cited AI tutor

Ask anything and get answers grounded in your real, sourced curriculum — citations, not hallucinated fluff.

THE MASTERY LOOP

One loop. Run it, and it compounds.

Ignite → Dive → Climb → Ask. The science of durable memory, turned into a place you want to come back to.

01

Ignite

Master an atomic concept and a star lights up in your universe.

02

Dive

Drop into a cinematic Concept Story — the idea, beat by beat.

03

Climb

Recall it under pressure and watch mastery rise, rep after rep.

04

Ask

Ask the universe anything — get an answer grounded in real sources.

THE UNIVERSE

Thirteen domains. Hundreds of atoms. One universe.

Every concept is an atomic note, authored from official and institutional sources — atom by atom, until the map is yours.

NetworkingCloudSecurityData EngineeringML SystemsAI ArchitectureSoftware ArchitectureReliability / SRELinux / OSFrontendQuant / TradingCS FoundationsData Science
WHY IT STICKS

Built on how memory actually works.

The forgetting curve, beaten

Reviews land right before recall fails — so it never does. Retention compounds instead of leaking.

Recall over rereading

Retrieving an answer builds memory; highlighting a page does not. Praxis only ever asks you to retrieve.

Your own Note Universe

Capture insight by voice or keyboard and watch it orbit the concept it belongs to — forever findable.

Mastery you can see

Every star brightens as you climb. Progress stops being a number in a dashboard and becomes a place you live.

PRICING

Start free. Go boundless when you're ready.

Free

$0forever

Step into the universe and light your first stars.

  • Explore the full universe
  • Master your first sector — Networking
  • 5 AI-tutor questions a day
  • Spaced-repetition recall
Light your first star — free

Your universe is waiting.

One concept lights one star. Light the first one tonight.

Light your first star — free