You came for the moment it clicks.

Praesto answers during class, then turns the lecture into practice.

Download on the App Store

Free on iPad, iPhone, Macand the web.

Free on iPad, iPhone and Mac.

Scan for youriPad or iPhone.

Or start free in Chrome or Edge on a computer.

I am having difficulties with the platformdefinition.13:42:37AssistantA simple class-consistent definition is:Aplatformis a business thatfacilitatesinteractions or matches betweendifferent participantsand mainlycreates value byenabling exchange,rather than by producing the endproduct itself.From the transcript, the key ideas were:•the platform“controls the network”•the value flow ismatching /exchange•itdoes not bear the cost ofproduction•it may still bearcuration /governance / pricingcosts

Ask what was just said.

See every feature

During class

Listen first. Write only what matters.

Praesto keeps every sentence, so a circled word on the slide is enough. Each note is pinned to its minute.

So finals start from your own notes, not a pile of recordings.

Pipelines and platformsWHERE THE COST SITS1. PIPELINE•A firm makes the product and sells it.•It pays to produce every unit.•Value moves one way, from maker to buyer.•Growing means producing more.2. PLATFORM•Connects makers with users.•Value comes from the match.•Rules and trust keep it working.•Growing means more matches.3. WHAT TO ASKWho pays to make what is traded, and who pays to keep the trade working?Platform does notbeat cost ofproductionAaMarker Felt18 pt100%PLATFORM STRATEGYGeneralExplain my note: Platform does not beat cost ofproduction.16:21:36Your note means aplatform captures and coordinatesvalue without usually paying the production costofwhat is being exchanged.•Production costs: the cost of making or supplyingthe thing itself, like a driver's time and car, or aseller's goods.•Platform costs: the cost of enabling the interaction:matching, curation, rules and trust.•In the lecture: a platform does not carry the cost ofproduction, but it does carry the cost of curation.•One small wording fix: your note says “does notbeatcost of production,” but from the transcript theintended phrase was almost certainly “does notbear the cost of production.”The lecturer also added a nuance: sometimes platformsdo move into productionwhen they want to securesupply.

After class

Your lecture becomes practice.

Praesto writes the questions from what was said, so there are no cards to make. Each answer explains itself and shows its sources.

Praesto on iPad: a practice question from the lecture, answered correctly, with its explanation, an AI-generated label and two sources.Praesto on iPad: a practice question from the lecture, answered correctly, with its explanation, an AI-generated label and two sources.

Days later

It comes back when it's due.

Every question you answer becomes a review card. Review asks before it shows.

ReviewReps 1EasyDue nowLast time you picked B.Explanation'Firsttheunit,thendesignthevalue,'AI-generated: may be inaccurate.Sources (1)transcriptSEG-20476Firsttheunit,thendesignthevalueCorrectRecorded Good. Next review in 2 days.Felt different?AgainHardGoodEasyNext cardCheckAnswer and tap Check. Your review is recorded automatically.IncorrectExplanation'Firsttheunit,thendesignthevalue,'AI-generated: may be inaccurate.Sources (1)transcriptSEG-20476Firsttheunit,thendesignthevalueHow will it feel?AgainHardGoodEasyCheck#4ApplyEasymulti-choiceImagineyouaredesigninganewplatformthatconnectslocalbakerswithcustomers.Basedontheplatformvaluechainframeworkdiscussedinthelecture,whatwouldbethesinglemostcriticalsteptodesignfirst?A.B.C.DefiningthevalueunitandthecoreinteractionbetweenbakerandcustomerD.

It all connects.

The roomHandwritingTranscriptPast sessionsDocumentsAI Q&AResearchPraestoOnly togetherClever questionsNotes pinned to the minuteTopics mapped as people talkYour assistant knows the roomReview from your own lecturesSix ways to work the hour.One knowledge base.The room keeps feeding it.Every note you write sharpens the next answer.More than the sum of its tools.

Before the exam

Every class and meeting in one place.

Ask across all of them. The answer names the sessions it came from.

Every session builds your knowledge base. On Pro, the Praesto Connector lets the AI assistant you already use answer from it. Setup steps

Can you tell me what wasthe latest mixture modeldiscussion about?READING3 of 52 · chosen before generating · no modelcostMKTG Special · 24 AugScale ops efficiency June 6 · 24 AugMKTG session 12 · 24 Aug•MKTGsession12:Reading them now…Working out which sessions to read…ASKAsk “Can you tell me…↩↩DOStart recording into a ne…Can you tell me what w…Ask across everything,…Can you tell me what wasthe latest mixture modeldiscussion about?

At work

The same assistant, in your meetings.

Meeting mode keeps the record while you think. Action items land in the report.

Praesto records on your device, so nothing joins your call. Tell the others first. Action items are on Essential and Pro.

Meeting mode10:02:11Are we still shipping on the fourteenth?10:02:29Can you get the pricing page to legalby Thursday?10:02:51Then we hold the date and cut the secondtier.10:03:02The board needs the updatednumbers before Friday.10:03:28Can you book support a walkthroughnext week?RecordingWeekly planning2:112:292:513:023:28StopYou're responsible for ensuring everyone you record hasconsented.Action itemsDetectingSend the pricing page to legal.By ThursdayProvide the updated numbers to the board.Before FridayBook support a walkthrough.Next weekWeekly planningDoneRecorded action items•Send the pricing page to legal. —by Thursday•Provide the updated numbers to the board. —before Friday•Book support a walkthrough. —next week
Tutorials

See it work, one feature at a time.

Twenty-three short videos of the real app, most under a minute.

See all 23 tutorials

Pick your device.

One account works on all four. No Android app. On Windows, use the web app.

Your hour stays yours.

The audio never leaves.

Speech becomes text on your iPhone, iPad or Mac, or inside your browser. No audio is uploaded.

Slides are read on-device.

On iPhone, iPad and Mac, your device reads the text off the slide. Captures delete with the conversation.

No model trains on you.

Not ours, and not the AI provider's. Training on your data is barred by contract.

What reaches our servers: text, and slide photos from the web app. How we protect your data

Questions before you try it.

Isn’t re-reading my notes the same thing?

No, and the research says so. See the research

Can I record my class?

Check your syllabus first. Here is our plain-English recording notice.

Do I need a card?

Not for the Free plan. A trial asks for one, and you can cancel before it ends.

Start free. Upgrade when it earns it.

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See what it does in a real lecture, without paying.

Get the app
Essential 1 month free
$9.99 /month
$11.99 a month in the App Store

Less than one campus coffee a week, for every class you take.

For a full course load: every lecture, every week.

Start 1 month free
Pro 1 month free
$12.99 /month
$14.99 a month in the App Store

Less than one campus coffee a week, for every class you take.

For heavy weeks: back-to-back classes, meetings and readings.

Start 1 month free

Cancel before the trial ends and you pay nothing. Trials are for new subscribers. Compare every plan

One assistant, from the first lecture to the exam.

Download on the App Store

Scan for youriPad or iPhone.

Free to start.
Try it at your next class.

Or start free in Chrome or Edge on a computer.

Built by a student founder. Read the story