Powered by Gemma 4, an open model

The course that adapts to every answer you give.

Describe what you want to learn. Cognify maps the skills it takes, teaches with cited sources, and reshapes your path when your answers reveal a gap.

  • Diagnostic in two minutes
  • Sources on every lesson
  • Your data stays yours

How it works

From “I want to learn this” to a clear next step

  1. 01

    Tell it your goal

    "Python for data analysis, 30 minutes a day." Gemma 4 turns it into a scoped target.

  2. 02

    Take a short diagnostic

    Two small batches find what you already know. Untested skills stay unassessed, never failed.

  3. 03

    Follow your skill graph

    Prerequisites come first. Each lesson cites the sources it was written from.

  4. 04

    Watch it adapt

    Repeated, related mistakes trigger a quick check. A confirmed gap inserts a short review, with the reason shown.

Features

Built around evidence, not guesswork

A skill graph that remembers

Skills keep stable IDs across every change, so your history, answers and progress survive when the path is updated.

Lessons with receipts

Every lesson cites stored sources. Citations to anything else are stripped before you see them.

Checks before changes

One wrong answer never rewrites your course. Two related ones trigger a two-question check first.

A tutor that knows the lesson

Ask for a simpler explanation, another example, or a hint. It gives hints before solutions.

Progress you can trust

Mastery moves only on answers. Finishing a lesson is activity, not mastery, and the dashboard keeps them apart.

Private by design

Row-level security in Postgres: you can read only your own rows, and grades or answer keys can't be written from the browser.

Why it's different

A fixed course keeps going. Cognify checks first.

Typical course
Cognify
Same lessons for everyone
A graph built from your goal and your answers
Finishing a video counts as learning
Only answers move your mastery estimate
Stuck? Watch it again
A targeted review of the prerequisite you're missing
Changes happen silently, if at all
Every change logged with the evidence behind it

Under the hood

Gemma 4Gemini APINext.js 16Supabase AuthPostgres + RLSReact FlowTavily searchZod

Start with one goal.

Your skill graph, lessons and progress are saved to your account, ready when you come back.

Create your account