Stop watching tutorials.
Start learning from them.
Paste any YouTube video or playlist. Get the complete lesson in the video's order — with the code and diagrams from the screen — plus a tutor that knows every minute of it.
18:43The production solution: context-augmented generation
To make generative AI production-ready, models must never run in isolation. An FDE supplies the model with runtime context alongside the raw user prompt — policies, live order data and chat history.
┌──────────────────────┐
│ User query │
├──────────────────────┤
Context ──────> │ Company policy │ ──> [ LLM ] ──> Accurate
sources ├──────────────────────┤ answer
│ Live order status │
├──────────────────────┤
│ Conversation history │
└──────────────────────┘
Video is a great way to show — and a terrible way to learn.
YouTube has the best free courses in the world. Learning from them still means fighting the format.
You can't skim
Already know the basics? You still scrub through them to find where the video gets new.
You can't search
“Where was that command?” means rewinding a 90-minute video — again.
You can't copy the code
Pause, squint at a blurry frame, retype — and hope you didn't miss a bracket.
No one to ask
Stuck on one idea? Your options are the comments section or another video.
Unwatch fixes all four — without losing a single thing the video teaches.
Everything the video teaches. None of the waiting.
Not a 5-bullet summary. A lesson you can actually learn from — and the tools to make it stick.
It watches the screen, not just the audio.
Most tools only read the transcript, so the code, slides and diagrams the instructor shows are lost. Full lessons look at the video and copy them into your lesson as shown.
- Code, terminal output and file names, exactly as on screen
- Diagrams redrawn as text you can copy
- Transcript-only mode when you want it faster
In the video at 18:43
In your lesson
┌──────────────┐ │ User query │ ├──────────────┤ │ Policy │──> [LLM] ├──────────────┤ │ Order status │ └──────────────┘
A tutor that has watched every minute.
Select any sentence and ask about it — or ask anything in the chat. Answers use the video itself and point to the exact moment.
- “Explain simply”, “give an example”, “go deeper”, “why?”
- Every answer cites timestamps that jump the player
- Says clearly when an answer goes beyond the video
A like button: liked is the current value, setLiked flips it. Click → setLiked(!liked) → React redraws the heart. 0:47
Playlists become real courses.
Paste a playlist and every video becomes a lesson, in order, with progress tracking. Ask questions across the whole course — answers tell you which video covers what.
- Lessons generate in the background while you start reading
- Mark complete, continue where you left off
- “Which video explained embeddings?” — answered with links
Make it stick — then keep it.
Reading isn't remembering. Each lesson comes with a quiz and flashcards, and compact study notes that include what you asked.
- Quizzes with explanations that link back to the lesson
- Flashcards: “Got it” / “Again” until you know them
- Study notes with your Q&A — export to PDF or Markdown
How long is your playlist?
Drag to your course length. Based on our measured lessons, reading takes about 38% of the video's length — before you skip anything you already know.
Ratio from 3 real lessons (225 min of video → 84 min of reading at 238 words per minute, the average adult silent-reading speed). Watching time assumes 1× with no pauses or rewinds. Very short clips can take longer to read than to watch, because lessons add explanations and code.
Why not just watch, or use a summarizer?
Summaries are great for deciding whether to watch. They're not built for learning the skill.
| Watching the video | Typical AI summarizer | Unwatch | |
|---|---|---|---|
| Covers everything taught | Yes, slowly | 5–10 bullet points | Full lesson, same order |
| Code & slides from the screen | Pause and squint | Usually transcript only | Copied as shown |
| Skim, search, copy | No | Partly | Yes |
| Jump to the exact moment | Scrubbing | Rarely | Timestamps everywhere |
| Ask about what you don't get | Comments section | Sometimes, generic | Tutor grounded in the video |
| Check your understanding | No | No | Quizzes & flashcards |
| Whole playlists | One by one | One by one | Course with progress |
Built for people who learn from YouTube on purpose.
If you've ever had a 20-hour playlist sitting in “Watch later”, this is for you.
Learn a new framework this weekend
Turn a full course into lessons with every code block intact, then quiz yourself before you build.
Lecture playlists → revision notes
One course per subject, notes with your own doubts in them, flashcards for the night before.
System design, DSA, ML
Skim what you know, go deep on what you don't, and test yourself on every video.
Long talks without the 2 hours
Read the conference talk on your commute; jump to the demo when you want to see it.
Hindi or any language → English
Great tutorials in other languages become clear English lessons you can read at your own pace.
Finally finish the course
Progress tracking and lessons you can pick up in 10 minutes make long courses actually finishable.
Start free. Upgrade when you're hooked.
Each lesson you add uses its video length once from your weekly and monthly hours. Reopening it later is always free. Prices include GST.
Free
Try it on the videos you're learning from.
- 3 hours of video a week (up to 12 a month) — double with transcript-only lessons
- 10 AI requests a day (tutor, notes, quizzes)
- Reopen your lessons anytime
- Full lessons with on-screen code
- Playlists as courses
Pro coming soon
or ₹1,999 a year (2 months free). For people learning every week.
- 12 hours of video a week (up to 48 a month)
- 60 AI requests a day
- Whole playlists — lessons ready as you go
- Everything in Free
Own Key coming soon
or ₹449 a year. Bring your own Gemini API key — Google bills you for AI directly.
- 20 hours of video a week
- 300 AI requests a day
- That's our limit — Google's limits on your key may run out first (free-tier keys: a few lessons a day)
- Your key: checked, encrypted, never shown again
- Everything in Pro
After the first 100 accounts: Free 1 hour a week (up to 4 hours a month), Pro 3 hours a week (up to 12 hours a month), Own Key 10 hours a week. Early accounts keep their hours.
Questions, answered.
Is it just a summary?
No. You get the whole lesson in the video's order — every concept, example, warning and code snippet — so you can learn from it instead of watching. Compact study notes are a separate, optional step.
How much time does it actually save?
About 60% less time. In our tests 3h 45m of video became 1h 24m of reading — 38% of the video's length — and that's before skipping parts you already know or counting the pauses and rewinds of real watching. For very short clips the lesson can take longer than the video, since it adds explanations and code.
What's the difference between a Full lesson and Transcript only?
A Full lesson is made by the AI looking at the video as well as listening to it, so code, slides, diagrams and terminal output shown on screen end up in your lesson as shown. For videos with captions you can pick Transcript only instead: made from the speech alone, it uses half your video time — great for talks, podcasts and lectures, but on-screen code may be missing.
Which videos work?
Public YouTube videos and playlists, with or without captions, in any language. Non-English videos become an English lesson.
Are my questions and notes private?
Yes. Your chats, notes, quiz scores and course progress belong to your account only.
Is it free?
Yes. The free plan includes 3 hours of video a week, up to 12 hours a month (each lesson you add uses its video length once), and 10 AI requests a day. Pro (₹199/month or ₹1,999/year) gives 12 hours a week, up to 48 a month, and 60 AI requests a day.
What is the Own Key plan?
You add your own Google Gemini API key (free to create in Google AI Studio) and all your AI work — lessons, tutor, quizzes — runs on it, so Google bills you for AI use directly. You pay us ₹49 a month or ₹449 a year for the app, with up to 20 hours of video a week and 300 AI requests a day. We check the key with a free test call, store it encrypted and never show it again. Those are our limits — Google also limits your key, and whichever runs out first applies: free-tier Gemini keys only allow a few lessons a day, while keys with billing turned on are effectively unlimited.
When do my hours reset?
Weekly hours reset every Monday at midnight (India time) and monthly hours on the 1st. A lesson uses its video length once — reopening it, or adding a video you already have, costs nothing.
Your “Watch later” list, finally learned.
Paste the first video. Your lesson is ready in a few minutes.
Can someone explain what happens at 14:32? 🙏