Notes you can check.
Lectavi is a desktop app that records your lectures and turns them into notes, flashcards and diagrams while the class is still happening. Every sentence it writes down keeps the second it was said, so you can press any line and hear your lecturer say it. Nothing is a summary you have to take on trust.
Windows only for now. The app is not code signed yet, so Windows will show a SmartScreen warning on first run. Choose More info, then Run anyway. We would rather say that here than surprise you with it.
A sentence the lecturer said. It carries the second it was said.
A sentence Lectavi wrote. It never carries a time, because nobody said it.
The difference is not styling. A said line cannot be stored without a start and an end, so a claim with no moment behind it cannot pretend to be evidence.
Press Play the lecture. The notes are written as it runs, not afterwards.
A demonstration, not a recording of a real class. The sentences are written to show the two channels and the timestamps behind them.
Every other tool hands you a summary and asks you to trust it.
Here are the same two minutes of that lecture, written twice. The difference is not the quality of the prose. It is whether you can find out where any of it came from.
The lecture covered the chain rule for composite functions. The professor explained that you differentiate the outer function while holding the inner one constant, then multiply by the derivative of the inner function. An example using a trigonometric function was worked through, and the topic was noted as exam relevant.
Every sentence here might be right. There is no way to find out, and "noted as exam relevant" is either something he said or something the model decided.
This is on the midterm. I am not going to tell you which question.
Flagged as an exam signal, and you can hear him say it.
The claim about the midterm is in the first typeface, so he said it. The judgement that it matters is in the second, so Lectavi said it. Press the plate and the recording proves which is which.
Three columns, and the middle one is yours.
What she said on the left, with the second she said it. What Lectavi wrote in the middle, which you can edit. What it drew on the right. Press any timestamp and the recording plays from there.
A real screenshot of the real app, not a drawing of one. The lecture behind it is a test lecture we wrote ourselves, so no student's material and nobody else's teaching is on this page.
What is waiting when you stop recording.
The notes are the beginning. Everything below was made from the same lecture, in the time it takes to pack a bag, and every piece of it can play the moment it came from.
Cards that can play the moment
Forty from this lecture, each one made from a sentence somebody actually said. Press hear it and the recording starts where the answer was taught.
Practice tests, written from the class
Multiple choice, written answers, or a mix. A wrong answer is not left at the word incorrect: it is explained, with the minute it was covered.
Figures, drawn from what was taught
Six for this lecture, each one stamped with the minute of the recording it belongs to. Not stock art: they are drawn from the sentences beside them.
- Canvas
- Google Calendar
- Google Classroom
- Any iCalendar feed
One lecture, counted.
These are not estimates. They are what the app produced from the lecture in the screenshots above, on one run, and you can count them yourself.
- 52
- claims, each with a timestamp. Every one is a sentence the recording can be played back to prove.
- 40
- flashcards, which is the ceiling. One lecture never makes more, because a deck nobody finishes teaches nothing.
- 6
- figures drawn for it. One for each topic the lecture covered, not one for each slide.
Six more sentences were written and then thrown away in the same run, because nothing in the recording supported them. That is the part worth paying for.
Four ways in, and one of them is the phone in your pocket.
A lecture is not always a room. Lectavi takes the microphone in front of you, the sound coming out of your own machine, both at once, or a phone propped against your laptop.
In person
The laptop microphone, in the room, with the lecturer thirty feet away.
Video
The sound your machine is making. An online class, or a recording you are playing back.
Hybrid
Both at once, mixed, for the seminar where half the room is on a call.
Phone
Open a paired page on the same network and the phone becomes the microphone. Nothing to install.
An mp4 or an mp3 you already have comes in as a lecture too, and so does a YouTube lecture, with the same notes, cards and diagrams on the other side.
It reads the syllabus you were given in week one.
Upload the PDF and Lectavi pulls out the part everybody scrolls past: how the grade is actually divided, and the dates you cannot miss.
Read out of the document itself, in the order they arrive, with no year invented for a date the syllabus never gave one.
Connect Canvas or a calendar and what is due turns up beside the class it belongs to, and drops off the moment you hand it in.
What we do with the audio, stated exactly.
This is the part most tools are vague about, so here it is in the two halves that actually matter: what stays with you, and who else touches it.
The recording file stays on your disk. It is never uploaded and we never keep a copy of it.
Audio is streamed to Deepgram to be transcribed while you record. That is how the words get written down, and we are not going to describe it as anything else.
Deepgram transcribes. OpenRouter writes the notes and the cards. Supabase holds your account. Stripe takes the payment.
All four are listed, with what each one receives, on the subprocessors page.
Three lectures free, and three classes. No card.
Enough to record a week of one class and find out whether any of this is true. Both plans get the whole app: the notes, the cards, the diagrams, the practice tests. What changes is how much you record.
Everything essential, with no time limit.
- 3 lectures and 3 classes, ever
- Notes, cards, diagrams and practice tests
- Every timestamp, every citation
- No card to enter
$20 each month. Cancel whenever you like.
$120 once a year. Half the monthly rate.
Everything in Free, plus...
- Unlimited lectures and classes
- Every class you take, not only your first three
- A whole term on one price
- Cancel from inside the app, any time
Pays for itself in year three. Four years of yearly is $480.
Everything in Pro, and then...
- One payment, no renewal to remember
- Keeps working after you graduate
- Every feature we add later
Prices in US dollars. The free plan needs no card. You choose a plan inside the app after you sign in, paid plans are billed through Stripe, and you can cancel from Settings.
The awkward questions, answered straight.
Is this cheating?
Taking notes is not cheating, and neither is recording a lecture you are enrolled in. Handing in text a model wrote and calling it yours is, and no tool changes that. Lectavi is built so you can always tell which sentences came from your lecturer, which is the opposite of what a tool for cheating would do. Our position is written out in full on the academic integrity page, and it is the page to show a professor who asks.
Do I need my lecturer’s permission to record?
Often yes, and it depends on your institution and where you live. Many universities require it, some courses grant it in the syllabus, and recording law differs by state and country. Ask, and get the answer in writing. Lectavi shows an indicator whenever it is capturing, and asks you to confirm you have permission for a class before it records one.
What if my professor has a strong accent?
The number we publish is for clean audio, and a difficult room or an unfamiliar accent will be worse than 0.77%. The single thing that helps most is the syllabus: loading your course vocabulary is what takes the technical terms from a guess to a spelling. And because every line keeps its timestamp, a sentence that came out wrong is one press away from the audio that settles it.
What happens with no internet?
The recording still happens and the file is still yours, because capture is local. Transcription needs the connection, so the words arrive when you are back online.
Is there a Mac version?
Not yet. Windows only today, and we would rather say so than take your money and explain later.
Record one lecture and press one timestamp.
That is the entire argument, and it takes about fifty minutes plus one click to find out whether it holds.
Download for WindowsFree tier, three lectures and three classes, no card.