Structured AI learning

Knowledge Universe

Looking for a video course on a specific topic? Chances are one of our creators has already built it — AI-generated knowledge delivered as a polished, in-depth video — and will sell you a copy for a fraction of what it would cost to generate yourself. No need to spend hundreds of dollars prompting an LLM. Browse the Market, find your topic, and start learning right away.

Or become a creator yourself. Premium members turn any subject into a video course and list it on the Market — and earn as much as the topic's demand allows. Because our courses are AI-generated, they go deeper than most human-made content: more detailed, more exhaustive, more complete. It's a wide-open field, and you can become a knowledge seller in minutes.

Download for Mac — it's free

Why Knowledge Universe

AI chats lose your answers. Knowledge trees keep your understanding.

Turn any topic into a knowledge tree

Type a topic — Neural Networks, the French Revolution, Color Theory — and AI builds a visual tree of connected concepts. Expand any branch deeper, from beginner to advanced, and watch understanding grow the way your brain actually works: by connecting new ideas to what you already know.

Generate video with audio + text

From one knowledge tree, AI generates a polished video course — complete with synchronized narration and sound built in — alongside rich written explanations. One Seedance-powered generation delivers the finished video; no separate narration to record or stitch. Learn by watching or reading. One source, two formats.

Sell what you make on the Market

Package your course as video, text — or both — set your price, and publish to the Market. Buyers pay you directly via Stripe (we take a 30% fee); the course imports into their workspace as a knowledge tree to explore. Learn deeply, create freely, earn from what you know.

Never lose an answer in chat again

Every concept has its own scoped AI chat. Ask follow-ups, request examples, get a simpler explanation — all attached to that concept, not lost in an endless feed. Your Q&A stays organized, searchable, and yours.

Features

Turn any topic into understanding — then into video and text you can sell.

Generate + understand

AI builds a knowledge tree for any topic
Beginner → Intermediate → Advanced depth on every concept
Per-concept chat — ask follow-ups without losing context
Five AI response styles + 27 response languages
Private notes on every concept (AI never sees them)

Create in every format

Generate AI video from any concept — audio baked in (Seedance 2.0)
Polished written explanations, overviews, and exports
One knowledge tree → video and text
Composing options: style, aspect, duration, camera, mood, subtitles
Bring your own AI keys — OpenAI, Anthropic, Seedance

Sell on the Market

Publish a course as video, text — or both
Set your price ($0–$50); buyers pay you via Stripe
Categories + tags: Math, Art, Music, Science, Programming, more
Buyers import the course as a knowledge tree to learn
Stripe Connect handles payouts to your bank

Built for the Mac

Native performance — fast, fluid, no Electron
Export to PDF, JSON, or Markdown
Full-content search across every concept (Premium)
CloudKit sync across your Macs (end-to-end encrypted)
Auto-updates itself · macOS 15+ · Apple Silicon + Intel

Loved on X

Early reactions from builders and learners who spotted Knowledge Universe.

Big Jay

@Jux_tice

I like that approach. Most knowledge tools still rely heavily on folders and linear organization — a node-based structure could make connections easier to visualize. Keep building. ⚡

AnaaDev

@ardiana008

That app looks like an incredible idea — would love to try using it!

Antoine

@helmo_solutions

I am hyped by the project — I want to see the evolution. 🙌

Douglas Loveday

@DouglasLoveful

I love this idea! I'm anticipating your launch.

Anshuman J.

@anshumanjazz

A knowledge-organizer tool — so cool, Vahan!

Follow the build on X

🛒 One market, fairly priced

Knowledge Universe Market

An app to read knowledge. A market to share it at a fair price.

Here we don't regenerate common knowledge an infinite number of times. One user generates “How to Make a Cappuccino” and sells it for a fair price — others don't even need their own AI API keys.

One-click import after purchase and you own the knowledge board: a beautiful tree of concepts with video and text. Free accounts can buy; premium accounts can create and sell.

🌱 Generate once💳 Buy or sell🌳 One-click import

Generate once

Build a knowledge tree once — no one has to regenerate it again.

Buy or sell

Free accounts buy, premium accounts buy and sell — your choice.

One-click import

Own the board — video and text — no API keys needed.

Start free. Go premium when it clicks.

Learn for free, forever. Unlock the full universe whenever you're ready — cancel anytime.

Free

Start learning

$0forever

Free forever. Card saved for one-click course purchases on the Market.

or download for Mac

10 knowledge maps, 20 levels deep
Free Apple AI — on-device + cloud
Buy any course on the Market

Premium

$9.99/mo

or $99.99/year · 7-day free trial

Unlimited maps, 200 levels, 2,000 concepts
AI video & text generation
Create & sell courses — Stripe payouts

Compare plans

Free

Premium

Knowledge maps

Knowledge maps (boards)

Unlimited

Concepts per map

500

2,000

Tree depth

20 levels

200 levels

AI-generated concept trees

Edit, rename, duplicate, merge, delete concepts

Concept icons (AI-picked SF Symbols)

Learning

Expansion levels

Beginner

Beginner · Intermediate · Advanced

Speed / Depth mode

Memory configuration

Chat per concept

5 messages

Unlimited

Quote expansions (from selected text)

Unlimited

AI response styles (5)

AI response language (27 + Auto)

Private notes on concepts

Concept self-check quizzes

Voice input (on-device)

Market — buy + sell

Buy courses on the Market

One-click import (no API keys needed)

Publish courses to the Market

Sell as video or text

Stripe Connect payouts to your bank

AI video generation (Seedance 2.0)

Bring your own key

Share a concept as an image

Power features

Titles only

Full content (every concept body)

Full roadmap generation

Version history (20 per concept)

Auto-backup (every 10 edits, keep last 5)

Workspace / map lock (Touch ID / password)

Export + sync

Copy as Markdown

Export to PDF

Export to JSON / Markdown

Import from JSON

CloudKit sync (end-to-end encrypted)

AI providers

Apple AI on-device

Unlimited

Apple AI Cloud Compute

Daily quota

Bring your own OpenAI / Anthropic key

Platform

Polished native UI + animated background

Auto-updates via Sparkle

Native macOS (no Electron)

Frequently asked questions

Everything you need to know about building, exploring, and selling knowledge.

Start with any topic — "Neural Networks", "The French Revolution", "Music Theory" — and Knowledge Universe generates a visual tree of connected concepts. Each node is a sub-topic you can expand further, building a complete map of the subject. It mirrors how understanding actually works: new ideas connect to what you already know.

Every expansion offers three levels: Beginner (3–5 clear sub-concepts), Intermediate (5–8 with more depth), and Advanced (8–20, expert-level). Start at the surface and dive as deep as you want — from a 5-minute overview to a 200-level deep-dive on the same topic.

Yes. Every concept card has its own chat — ask follow-up questions, request examples, or get a different explanation. The chat stays scoped to that concept, so your Q&A never gets lost in an endless feed like a regular AI chat.

Yes. From any concept, generate a finished video with synchronized narration and sound built in — powered by Seedance 2.0, using your own API key (BYOK). The video renders under the concept and can be published to the Market as part of a course.

Yes. With AI you can generate every aspect of a course from your knowledge tree: a finished video (with audio baked in via Seedance 2.0) and the full written text (concept explanations, overviews, notes). You choose how to package and sell it — as a video course, a text-only guide, or both together. Set your own price on the Market and buyers pay you directly via Stripe. One knowledge tree, every format, your revenue.

Yes. Pick from five response styles — Short informative, Long and detailed, Include many examples, Explain like I'm 5, and Deep and professional. Structured formatting (headings, bullets) and step-by-step for how-to topics are always on.

Yes. Choose from 27 languages — English, Spanish, French, German, Russian, Armenian, Japanese, Korean, Chinese, and more — or pick "Auto" to match the language of your prompt. The AI writes its entire answer in your chosen language regardless of how your question is written.

Absolutely. Every concept has a private notes field — write your own summary, examples, or questions. Your notes are never sent to the AI; they stay yours.

Free tier searches concept titles. Premium unlocks full-content search — find any word inside any concept's explanation across all your maps, instantly.

Yes — Premium can export any map as a polished PDF (clickable graph + detail pages), JSON (full workspace backup), or Markdown (clean heading hierarchy for notes or blogs). You can also import JSON to merge workspaces.

Premium includes CloudKit sync — your knowledge maps stay up to date across every Mac signed into the same iCloud account, end-to-end encrypted.

No — the app ships with free Apple AI (on-device + Cloud Compute). For stronger reasoning (GPT-4o, Claude), bring your own OpenAI or Anthropic API key. Your key is stored in your Mac's Keychain; we never see it.

Completely. Your boards live locally on your Mac. CloudKit sync is end-to-end encrypted. We collect no personal data, run no analytics on your content, and never sell anything. If you bring your own AI key, your prompts go directly to that provider — not through us.

Yes. Generate a knowledge tree, then use AI to create a finished video (with synchronized audio via Seedance 2.0) and polished written content from it. Package any combination — video, text — and publish it to the Market as a course. Set your own price ($0–$50), and other users pay you directly via Stripe (we take a 30% platform fee). Stripe Connect handles payouts to your bank.

Browse the Market, watch the intro video, read the AI-generated overview, and pay securely with Stripe. The course imports into your workspace as a knowledge tree you can explore, expand, and learn from — in whatever format the creator published (video, text, or both).

Yes — Knowledge Universe auto-updates via Sparkle, so you always have the latest version without lifting a finger. No App Store required.

Any Mac running macOS 15 (Sequoia) or later, Apple Silicon or Intel. The app is a native macOS build — no Electron, no browser, just fast native performance.

Yes — cancel whenever, no questions asked. There's a dedicated “Unsubscribe” button right in the app's Subscription tab. Canceling ends your Premium at the next billing date and you drop to the Free plan. Your maps, concepts, notes, and purchased courses all stay — nothing is deleted. You can keep buying courses on the Market as a free user and re-subscribe whenever you like.

You can delete your account at any time from the app's Subscription tab or the user menu. Deleting your account cancels your subscription (no future charges), wipes your account from our servers — profile, maps, posts, comments, notifications — and signs you out everywhere. We keep only an anonymous financial record for accounting purposes, as required by law. This is permanent and cannot be undone, so we ask you to confirm.

Nothing is lost. If you cancel or your subscription lapses, you keep all your maps, concepts, notes, and any courses you bought. You simply drop to the Free plan's limits (fewer maps, shallower depth, fewer AI messages). CloudKit sync pauses and AI generation uses the free Apple AI limits. Re-subscribe any time to restore everything instantly.