Terms of Service

These Terms are a public offer. By starting a session, signing in or otherwise using the service, you accept the Terms and agree to the Privacy Policy.

The contract for paid access is concluded when you press “Pay” (the text next to the button says that pressing it means accepting these Terms) and pay for the purchase (Art. 438(3) of the Russian Civil Code). The purchase is governed by the version of the Terms in effect at the moment you press the button; we store that version number and the time you pressed it.

Wisot is meant for people aged 14 and over. If you are under 14, you may not use the service.

If you don't agree with the Terms, don't use the service.

Wisot (the "Service") is a learning service. It recognizes speech from the sound playing on your device and, if you turn it on, from your microphone, asks comprehension questions, grades your answers, answers your questions, takes into account materials you upload and writes summaries.

The Service is in beta. We may add, change and switch off features, including without prior notice, as long as this doesn't reduce services you have paid for.

Questions, grades, answers and summaries are written by AI. They can contain errors and inaccuracies; check anything important against the source.

You can use the Service without signing up: an account is then created automatically and tied to that browser. If you clear the browser data or sign out, you may lose access to it. To keep your history, sign in with a method available on the website or in the app.

You are responsible for access to your email and the accounts you sign in with, and for keeping any access code issued to you safe.

One account is for one person. Don't share access with others.

If you used the Service without signing in and then sign in to an account you already have, your data moves into it. Purchased hours are kept. Unused free hours of the account being moved expire and are not added to the hours of the main account.

We may delete inactive anonymous accounts.

For free, you get listening time:

• 30 minutes — right away, including without signing in;
• 30 more minutes — after you sign in by email with a confirmation code or with Yandex ID;
• 30 minutes in every calendar month (Moscow time), starting with the month after the 30 minutes for signing in were credited. These 30 minutes are valid until the end of the month.

The starting 30 minutes without signing in and 30 minutes after signing in don't expire. Free time can't be exchanged for money.

Free access includes the core features of the Service with smaller quotas — see “Quotas”.

Starting time is given to one person once. We may decline to credit it if many new accounts appear from one internet connection in a short time, if a disposable email address is used to sign in, or if it has already been received with the same email or the same Yandex ID — including in an account that was later deleted. Addresses that differ only in dots, “+tags” or aliases of the mail domain count as one address.

Besides hours and quotas, there are technical limits — for example, on file size and the rate of requests. We may introduce and change them to keep the service available, without making plans already paid for worse.

We may change the amount of free access going forward by publishing a new version of the Terms in advance. If the free load on the service spikes, we may temporarily stop sessions from starting for accounts that have no purchased hours; this doesn't affect anyone who has purchased hours.

Paid access is a subscription contract (абонентский договор, Art. 429.4 of the Russian Civil Code): you pay for access to the Service for the plan's term with a limit of listening hours. Hours are credited when the payment is confirmed and stay valid until the end of the term.

• “Study” («Учёба») — 990 ₽: 15 hours, valid until 00:00 on February 1, 2027, Moscow time;
• “Semester” («Семестр») — 3 300 ₽: 50 hours, valid until 00:00 on February 1, 2027, Moscow time;
• “Programme” («Программа») — 13 200 ₽: 200 hours, valid for 18 months from the date of payment, that is, from the moment the payment is confirmed. A “Programme” paid on October 10, 2026 at 15:00 Moscow time is valid until 15:00 on April 10, 2028;
• “Top-up” («Докупка») — 390 ₽: 5 more hours. It can only be bought while a plan is active. Top-up hours are valid until 00:00 on February 1, 2027, Moscow time, whatever the plan. “Programme” runs longer, so top-up hours bought with it may expire before the “Programme” itself ends.

Prices are in rubles, without VAT.

The receipt states the end date of a plan or a top-up, and for “Programme” the words “for 18 months”. The term itself doesn't change with what the receipt says: it is as listed above. Receipts for earlier purchases state the term as the number of days left until it ends.

Plans and top-ups can be bought again and in any combination. Hours from several purchases add up, and each purchase keeps its own term.

Hours and quotas apply in the Russian version of Wisot — on wisot.app, in the web app and in the Android app from RuStore or the Russian site — as long as you sign in to the same account. A plan can only be bought on the website. If your hours have run out, the Android app may fail to start a session and show an error — you can buy hours on the website in the same account.

Organizations use Wisot under a separate agreement. Where its terms differ from these, the agreement prevails.

Gift hours are credited to every plan purchase made up to and including 23:59 on October 31, 2026, Moscow time: as many hours as the plan itself has — 15 hours with “Study”, 50 with “Semester”, 200 with “Programme”. A top-up comes without a gift.

The gift with “Semester” and “Programme” goes to the first 100 payments for these two plans combined, in the order YooKassa confirmed them. A refund doesn't free up a place among these 100. The gift with “Study” is not limited by the number of purchases.

The gift is credited within 24 hours of payment. Purchases made before this version was published get it within 24 hours of its publication. If by then a purchase has been refunded or its term has ended, it gets no gift.

Gift hours are a separate credit with the term of the plan they come with. They are spent after paid hours (see “How we count hours”), are not refunded in money and don't count in the refund calculation. With any refund of the plan, full or partial, its remaining gift hours are cancelled.

You can buy a plan or a top-up only after signing in by email or with Yandex ID.

Payment goes through the YooKassa page (YooMoney NBCO LLC, ООО НКО «ЮМани») using the methods offered there. You enter your card details on that page: the full card number and the CVC/CVV code are never passed to us.

The payment is one-off. We don't set up automatic charges and don't save your card: the next plan is only ever a new purchase you decide to make.

Before you press “Pay”, the screen shows: what you are buying, the price, the number of hours and the end date of the term; how many hours of the purchase will go to settling overage (see “If your hours run out”) and to unlocking the summaries you selected; how many hours will be left. Exactly what was shown is deducted from the purchase.

An email address is needed for the receipt. You enter it yourself, and it may differ from the address you sign in with. YooKassa sends the electronic receipt (Federal Law No. 54-FZ) to that address.

Hours are credited once YooKassa confirms the payment. If confirmation is delayed, don't pay again: the hours will arrive automatically. If YooKassa cancels the payment, no hours are credited.

Hours are spent on listening time — while speech is being transcribed in a session from your device's sound or your microphone. The time is counted by our server using its own clock, not by the browser or the app.

At most 60 seconds are counted between neighboring transcript fragments: if the lecture has a long pause or the sound is off for more than a minute, time beyond that minute is not counted.

If transcript text arrives faster than 2,000 characters per minute (characters are counted including spaces; that's about 300 words), time is counted by the amount of text: 2,000 characters = 1 minute. Normal speech, even played back at double speed, as a rule stays under this threshold. For each session the larger of the two values counts: time by the server clock or time by the amount of text. Editing or deleting text doesn't reduce time already counted.

Time is counted to the second. Your remaining hours are shown in the session and in your account.

Order of deduction: free hours first, then paid hours — starting with those whose term ends soonest — and only after them gift hours. Compensation hours (see “If we lose your summary”) are spent together with free hours.

Your balance is checked when a session starts or resumes after a long break. We never cut off a lecture that has started.

If your hours run out during a session, it continues and the time goes into overage — up to 1.5 hours per account. Overage is not a monetary debt, and we never ask you to pay it. It is settled by the next hours credited: free hours without limit, purchased hours no more than was shown on the payment screen before you pressed “Pay”. If you don't buy anything, overage is settled only by free hours.

When overage reaches 1.5 hours, the session continues: recording and transcription go on, time beyond this limit is not deducted, and live questions and chat may pause. The summary of such a session is still built in full, but it is locked the same way as the summary of a session without hours.

If you have no hours when a session starts, it runs in “no hours” mode — we warn you before it starts. In this mode there are no live questions and no chat; recording and transcription work, and the summary is built from the whole session. The time of such a session is not deducted unless you choose to unlock its summary.

A locked summary: you immediately see the headings of all sections, the first section in full and what it contains — how many sections, formulas and concepts. The session transcript is always open. We keep the full summary and unlock it under “How to unlock a locked summary”.

You can have no more than two locked summaries per calendar month (Moscow time). After that, a session without hours can't be started until the next month or until you buy hours.

A locked summary is unlocked only by your choice, in one of these ways:

• by paying — select the summary on the payment screen: up to three summaries per purchase, and only if the purchase has enough hours for them. It is preselected only if you came to the payment screen through the “Unlock this summary” button;
• from your remaining hours — the “Unlock” button shows how many hours will be deducted and works only if you have enough;
• by signing in — if the session took place without signing in, the summary unlocks for free after you sign in by email or with Yandex ID. This way you can unlock no more than two summaries per person, and only if no account with that email or Yandex ID has been deleted before.

Unlocking deducts all of the session's counted time that hasn't been deducted yet: for a session without hours, all of its time; for a session locked at the overage limit, the time beyond what was already deducted. There is no length cap: a three-hour lecture unlocks for three hours. Unlocking by signing in deducts nothing.

An unlocked summary stays unlocked; you never pay for it again.

Quotas depend on your access. Values below are for free access, for “Study”, and for “Semester” and “Programme”:

• projects — 1 / 5 / no numerical limit;
• files per project — 3 / 10 / 30;
• screenshots per calendar month — 10 / 100 / no numerical limit;
• locked summaries — no more than 2 per calendar month with any access;
• history — with free access, lists show sessions from the last 30 days, and older ones are not deleted; with a plan, all history is shown;
• term dictionary — with any plan;
• PDF summary — with free access it carries the Wisot signature and a QR code, with a plan it doesn't.

“No numerical limit” means we don't set a quota, but the rules under “Fair use and automatic protection” apply.

When a plan's term ends, its unused hours — paid and gift — expire. Top-up hours stay valid until the end of their own term (see “Paid access”).

Quotas go back to the free ones. Nothing is deleted: projects, files and sessions above the free quotas stay available to view, but you can't add new ones while you are over the quota. With a new plan, everything is fully available again.

A plan is never renewed automatically.

While a purchase's term is running, you can cancel a plan or a top-up at any time and get your money back (Art. 32 of the Russian Consumer Rights Protection Law, Art. 782 of the Russian Civil Code). Each purchase is refunded separately.

The first 2 hours. If no more than 2 of a plan's paid hours have been used, we refund its full price, no questions asked. This applies to any plan, but once per person: a second full refund, including from another account, is calculated under the general rule.

General rule. Refund amount = purchase price × the share of paid hours not used: the unused paid hours divided by all of the purchase's paid hours (15 for “Study”, 50 for “Semester”, 200 for “Programme”, 5 for a top-up). Gift and compensation hours don't count. We don't withhold the payment service's fee.

Used hours are the paid hours deducted from this purchase: listening time, overage settled from it and unlocked summaries. The share is counted at the time of calculation: hours spent after you sent the request also count as used. On calculation, the purchase's remaining hours, gift hours included, are cancelled.

Once a purchase's term has ended, its hours expire and are not refunded.

Example: “Study” for 990 ₽. If 1 hour 30 minutes of paid hours have been used, that is under 2 hours, and we refund 990 ₽. If 6 hours have been used, 9 of the 15 paid hours remain, the share is 0.6, and we refund 990 ₽ × 0.6 = 594 ₽.

Send your request to hello@wisot.app from the address the receipt was sent to. Money is refunded only through YooKassa to the method you paid with; we don't transfer it to another card, by phone number or in cash. We process requests once a week, on Mondays, and refund the money within 10 days of receiving the request. YooKassa sends the refund receipt to the same email.

If the purchase was made by a user aged 14–17, their parent or other legal guardian may demand a full refund. This is not an automatic right: we consider such a demand if the age category “14–17” was set in the account before the payment, the applicant confirms the payment (date, amount and the last 4 digits of the card) and their authority, and no full refund on this ground has been made for this user before. Such a demand can be sent from any address. If the criteria are not met, the refund is calculated by the general formula. With a full refund, overage is written off and is not settled from later purchases.

If you dispute a payment through your bank, the hours from that payment are cancelled.

The full procedure and one more example are in the Refund Policy: wisot.app/en/refund.

If a failure on our side means a session's summary was not created or was lost, we credit twice as many hours as the session lasted by our time count. Email hello@wisot.app and name the session: we will check the failure and credit the hours.

Compensation hours are valid until the end of the pass they were credited to or, if there is no active pass, for 90 days from crediting; they are spent together with free hours, before paid hours, and are not refunded in money.

Compensation doesn't limit your consumer rights if the service was provided with defects.

Hours and quotas are designed for one person's studies. Besides hours, we track how many of the service's resources an account uses: chat with Wisot, clarifications, screenshots, rebuilding summaries, uploads.

If within a day an account uses far more resources than normal studying would, automatic protection suspends it until the next midnight Moscow time. This also applies to accounts with a plan. No hours are deducted during that time. If you think the protection was triggered by mistake, email hello@wisot.app — we will check manually.

If a single session uses far more resources than usual, live questions and chat in it may pause; recording, transcription and the summary continue.

We don't publish the protection's thresholds, so that they are harder to get around.

If free hours were obtained by getting around the rules — for example, by creating accounts in bulk or using disposable email addresses — we may cancel them. For tampering with time counting or getting around quotas, we may restrict access under “Acceptable use”.

Rights to what you listen to, record and upload (lectures, meetings, documents) stay with you or their owners. You allow us, free of charge, to store and process these materials, their transcripts and your messages, including with AI services, to the extent needed to run the Service and for as long as they are stored.

You warrant that you are entitled to process these materials and recordings in Wisot and, where other people take part (for example, in a meeting), that doing so doesn't violate their rights, the law or your organization's rules. You bear responsibility for this.

Your answers, messages and the summaries of your sessions belong to you, including locked ones. Locking a summary only restricts access to the full text the Service prepared from the session: that access is part of the paid service. The session transcript is always open, and we keep the full text of a locked summary for as long as the account exists and unlock it under “How to unlock a locked summary”.

You may not use Wisot to:

• process recordings, meetings and files you have no right to, including information protected by law as a secret;
• secretly record conversations or collect information about people's private lives without their consent;
• automatically scrape third-party courses for resale;
• attack our infrastructure, exploit vulnerabilities or circumvent technical limits;
• create accounts to receive free hours again, tamper with time counting or get around quotas;
• create derivative products on top of our API without written permission.

If there are grounds to believe the Terms are violated or the service is at risk, we may restrict or block access to the account.

All exclusive rights to the Wisot application, its source code, design, trademark and the wisot.app website belong to VIZOT LLC (ООО «ВИЗОТ»). You may use the Service only as described in these Terms.

The Service is provided "as is". We don't guarantee uninterrupted or error-free operation or that it meets your expectations, and we are not responsible for academic, work or other outcomes of using it.

We are not liable for errors in transcripts, questions, grades, answers and summaries or for decisions made based on them.

We don't compensate indirect losses or lost profits. For direct losses, unless the law provides otherwise, our liability is limited to the amount you paid us over the previous 3 months.

These limits apply to the extent permitted by Russian law and don't take away your rights as a consumer.

We may change the Terms by publishing a new version on this page. It takes effect from the date stated at its top. If you keep using the Service after that date, you accept the new version.

A new version doesn't change the terms of plans and top-ups already paid for: until the end of their term, the price, hours, quotas and counting rules of the version accepted at purchase apply. A new version applies to purchases made after it is published.

We may apply the Terms more leniently than they are written — for example, switch on summary locking and quotas in stages. This doesn't make your terms worse.

We may discontinue the Service or part of it, announcing this on the website in advance. If we discontinue paid access before the end of a paid term, we will refund the money for the part of the service not provided.

You can stop using the Service and delete your account at any time. If you delete it while a plan is active, its hours expire, and we calculate the refund amount under “Refunds” as of the moment of deletion; you can send the request from the address the receipt was sent to.

Relations connected with Wisot are governed by the laws of the Russian Federation.

Send claims to hello@wisot.app. We answer within the time limits set by law.

If we can't agree, the dispute is heard by the court that has jurisdiction under Russian law.

VIZOT LLC (Общество с ограниченной ответственностью «ВИЗОТ», ООО «ВИЗОТ»), OGRN 1257700503774, TIN 9707053050, KPP 770701001, registered office: 22 Seleznevskaya St., premises 4/T, Tverskoy municipal district, Moscow 127473, Russia. Email: hello@wisot.app, phone: +7 (925) 027-23-80. Support answers daily from 8:00 to 20:00 Moscow time (UTC+3).