Duolingo-style AI concepts learner
The assignment
Build an app that makes you learn AI concepts the Duolingo way. Wire it up with PostHog for analytics.
✳What Shaswat shipped
AI Concepts is described by its builder as an app to make learning AI feel less like homework, featuring 56 lessons, XP and streaks, interactive exercises, and an AI tutor. The live site is protected by a private access login.
✳Our read on this build
Shaswat shipped a deployed web app you can open. Parts of it sit behind a sign-in, so this read leans on what is public plus Shaswat's own description.
What it demonstrates
- The return loop is real: streaks, XP and bite-sized lessons — the mechanics that make a habit instead of a bookmark.
What is not shown
- The concepts covered are not listed publicly, so how far past 'what is AI' this goes is unclear from outside.
- No analytics wiring is visible in what is public, so how the app is really used stays unknown — including to its builder.
Take this awayA solid look at gamified learning UX; the sharper question is which event you would need to see to know which lesson people quit on.
✳Why this quest matters
Retention is a design problem, not a content problem. Wiring PostHog in from day one is the tell of a builder who ships to learn from real behaviour — rather than to admire their own screenshot.
✳What separated the strongest builds
A loop worth coming back to
Bite-sized lessons, instant feedback, and a reason to return tomorrow — streaks, XP, spaced review. A long article with a quiz at the end is not the Duolingo shape.
Concepts that are worth the streak
Tokens, embeddings, attention, hallucination, RAG — the vocabulary a PM needs in a real conversation, not 'what is AI' trivia.
Instrumented, not just launched
PostHog wired in and firing real events. An analytics claim nobody can verify tells a reader nothing about how the product is used.
No numeric scores are published here. These pages are written reads of what each builder shipped — the build is the point, not a mark out of a hundred.