Terms ofService

Mluvím is operated by Vibe Labs s.r.o., a limited liability company incorporated in the Czech Republic. In these Terms, “we”, “us” and “our” mean that company; “you” means the person using Mluvím.

Company

Vibe Labs s.r.o.

Registered office

Čs. armády 369/7, Bubeneč, 160 00 Praha 6, Česká republika

Company no. (IČO)

23452617

Tax no. (DIČ)

CZ23452617

Register

Registered in the Commercial Register kept by the Municipal Court in Prague, file no. C 427276

Email

admin@thevibelabs.com

These Terms apply to the website at mluvim.app, the application at ja.mluvim.app, and everything you can do with either. By creating an account you agree to them. If you do not, do not create one.

This document is written in English and also published in Czech. English is the original and the Czech is a translation of it. If the two ever differ on a point that matters to you as a consumer, the reading more favourable to you applies, as § 1812(2) of the Civil Code requires — we will not argue that a translation we published says something worse.

Mluvím is practice software for the speaking part of the Czech A2 language exam taken for permanent residency. You talk to an artificial voice, in Czech, and it answers. Some modes drill a specific exam task, one imitates an examiner and says nothing until the end, and one is free conversation. After a session you can ask for written feedback on what you said.

The product is under active development. Parts of the exam are not built yet and are labelled as such in the interface. We may add, change or remove features, and we may change the models and voices behind them.

• You must be at least 18 years old, or at least 15 with the consent of a parent or guardian who accepts these Terms on your behalf.
• You must be able to enter into a binding contract, and not be barred from doing so under the law that applies to you.
• One account is for one person. Accounts are personal and may not be shared, sold, lent, or used by more than one learner.

Mluvím is offered to consumers. If you are buying in the course of a business — a language school, an employer buying for staff — tell us first, because the consumer protections described in sections 7 and 8 do not apply to you and separate arrangements are needed.

You sign up with an email address, a password and the name you want to be addressed by. Keep the password to yourself; you are responsible for what happens under your account until you tell us it has been compromised.

You can close your account yourself at any time, from Settings. Closing it deletes your learner data — sessions, transcripts, feedback, vocabulary and any unused minutes — and cancels an active subscription immediately. Records of completed purchases survive, because accounting law requires them to; see the Privacy Policy.

Deletion is immediate and cannot be undone. Unused minutes and the remaining part of a paid month are not refunded when you choose to close the account, unless a right of withdrawal under section 7 still applies.

Conversation with the tutor is sold in minutes. One minute of your balance buys one minute of session time, measured on the clock the session shows you — from the moment it connects to the moment it ends — not on how long the voice spends speaking. Reading, writing and everything else in the product costs nothing.

Free on sign-up

5 minutes, once per account — Tasks 1 and 2 and free talk

Mluvím Plus

449 Kč every month — 75 minutes at the start of each billing period

Exam pack

1 190 Kč every 3 months — 240 minutes at the start of each billing period

Top-up · 30 min

269 Kč, one-off

Top-up · 75 min

599 Kč, one-off

Top-up · 150 min

1 090 Kč, one-off

All prices are in Czech crowns and include VAT where it applies. The price you see at checkout is the price you pay.

• Plan minutes do not roll over. Each renewal replaces the allowance rather than adding to it. Whatever is left of the last billing period’s minutes is gone when the next period’s arrive.
• Top-up minutes last 12 months from the day you buy them, after which whatever is left of that top-up comes out of your balance. They are spent after the subscription allowance, and the ones closest to expiring go first, so nothing lapses while newer minutes sit unused.
• A session reserves its maximum up front — 15 minutes for a mock exam, 10 for a drill — and gives back everything you did not use as soon as it ends. You need at least one minute of balance to start. If your balance is smaller than that maximum, the session reserves your whole balance instead and ends when it runs out.
• A paid plan is what opens the whole product. Without one you can practise Task 1 and Task 2 and use free talk; Task 3, Task 4 and the mock exam are part of the plan. Both plans open exactly the same product — they differ in how long the billing period is and how many minutes it carries, and in nothing else.

We may change prices, allowances and what a plan includes. A change to the price of a running subscription takes effect from the next renewal after we tell you, and we will tell you at least 14 days beforehand, to the email on your account. If you do not want the new price, cancel before that renewal.

Payments are handled by Stripe, which acts as the merchant of record for every purchase. In practice that means Stripe, not us, is the seller on the transaction: Stripe takes the payment, calculates and remits VAT, and issues the receipt or invoice. Your card details go to Stripe and never reach us — we see that a purchase succeeded, and who to credit for it.

Stripe’s own terms and privacy policy govern the payment itself. Everything else — the service you are buying, what the minutes are worth, and any complaint about either — is between you and us, under this document.

Your invoices are available from the billing portal, reachable from the Upgrade screen in the app. If an invoice needs company details on it — an IČO, a DIČ, a company name — enter them at checkout, because a VAT document cannot be reissued to a different buyer afterwards.

If a payment fails we keep the subscription alive while Stripe retries the card. If the retries run out, the subscription ends and the allowance stops; top-up minutes you already own are unaffected.

Both plans renew automatically until you cancel. Mluvím Plus charges 449 Kč every month and resets your allowance to 75 minutes; the Exam pack charges 1 190 Kč every 3 months and resets it to 240 minutes. The Exam pack is a 3 months commitment: it is charged in full at the start of each period and is not refunded in part if you stop using it partway through.

Cancel any time from Manage billing on the Upgrade screen. Cancelling stops the next charge; it does not end the billing period you have already paid for. You keep the remaining allowance and the product until that period ends, and the plan then lapses rather than being cut off partway through. Top-up minutes stay in your balance.

We do not restart a cancelled subscription on your behalf, and we do not charge you again after the period ends.

As a consumer buying online you normally have 14 days to withdraw from the contract without giving a reason, under § 1829 of Act No. 89/2012 Coll., the Czech Civil Code. The period runs from the day the contract is concluded.

To withdraw, write to admin@thevibelabs.com from the address on your account, saying that you are withdrawing and what you bought. A sentence is enough — there is no form to fill in. We refund by the same method you paid, within 14 days of receiving the notice.

If the service does not work as described — a session that will not connect, minutes taken for a conversation that never happened, feedback that never arrives — tell us at admin@thevibelabs.com. Under §§ 2389a and following of the Civil Code you are entitled to have a defect in digital content put right, and if we cannot, to a proportionate reduction in price or to withdraw from the contract.

We answer complaints within 30 days. Where minutes were lost to a fault of ours, the ordinary remedy is to put them back in your balance, which we will do without argument. Where a payment has to be refunded, it goes back the way it came.

Outside a defect, we do not refund minutes that have been used, and we do not refund a month because it went unused. Nothing here limits your rights under section 7.

If we cannot agree, you have the right to take the dispute to out-of-court resolution at no cost to you. The competent body is the Czech Trade Inspection Authority:

Body

Česká obchodní inspekce, Ústřední inspektorát – oddělení ADR

Address

Gorazdova 1969/24, 120 00 Praha 2, Česká republika

Email

adr@coi.gov.cz

Web

coi.gov.cz

You may also complain to the Czech Trade Inspection Authority about our conduct as a seller generally, and you keep the right to go to court instead.

The tutor, the examiner and the written feedback are generated by large language models. They are good enough to practise against — which is the whole claim we make for them — and they are not a teacher.

• The Czech can be wrong. A model can produce an incorrect form, invent a grammar rule, or correct something that was already right. Check anything that matters against a textbook or a human teacher.
• Feedback is not a mark. Scores, verdicts and “you would pass” style statements are practice output produced by software. They carry no weight with any examiner and predict nothing.
• It is not advice. Nothing said in a session is legal, immigration, medical or financial advice, whatever it sounds like, and it must not be relied on for a residency application or any other decision.
• It is not a person. The voice has a name and a manner because that is what makes practice work. There is nobody there.

We do not promise you will pass the exam. No practice product can, and one that says otherwise is selling you something it cannot deliver.

A session needs your microphone. Your browser asks first, and you can refuse or withdraw the permission at any time — the product simply will not work without it.

We do not record or store your voice. Audio streams live to the model that answers you, and is not kept by us afterwards. What we do keep is the text of the turns — what you said and what it replied — for 90 days, so that a complaint about a session or a bad correction can be looked into. Feedback reports and your vocabulary list are kept until you delete them or close your account.

Do not say things in a session that you would not want written down. It is a language drill, not a private diary. The Privacy Policy sets out exactly what is stored, where, for how long, and how to get rid of it.

Speak only for yourself. Do not put a session on speakerphone in a room with people who have not agreed to it, and do not use it to record anybody else.

Use Mluvím to learn Czech. Do not:

• share your account, or resell, sublicense or rent access — including running lessons for other people through one account;
• automate it: scripts, bots, scrapers, or any attempt to drive sessions other than by talking to it yourself;
• use it to generate content unrelated to language practice, or to extract the prompts, the model behind it, or the content bank;
• reverse engineer, decompile, probe or interfere with the service, or try to get round the paywall, the session limits or the rate limits;
• say or upload anything unlawful, or anything that infringes somebody else’s rights;
• impersonate anyone, or use somebody else’s payment details or email address.

Minutes are for your own practice. Consumption wildly out of line with one person practising — the kind that only comes from automation or a shared login — is a breach of this section, and we may suspend the account while we ask about it.

Ours. Mluvím — the software, the design, the brand, the exam content bank, the personas and the prompts behind them — belongs to us or to our licensors. Your subscription buys a personal, non-transferable, revocable licence to use it for your own practice, and nothing more. Nothing here transfers ownership of anything.

Yours. What you say stays yours. You give us permission to process it to run the service — to hold the conversation, produce the transcript, generate feedback and build your vocabulary list — and to keep it for as long as the Privacy Policy says. We do not use what you say to train AI models, and neither does the model provider, under the terms we buy on.

If you send us feedback or an idea about the product, we may act on it freely and owe you nothing for it. That is not us taking your work; it is us not having to negotiate over a suggestion emailed in good faith.

We try to keep Mluvím running, and we do not promise it always will be. It depends on services we do not control — hosting, a model provider, a payment processor — and any of them can have a bad day.

There is no uptime guarantee and no service credit. What there is instead: if a fault on our side takes minutes off your balance, we put them back. If an outage runs long enough to swallow a meaningful part of a paid month, write to us and we will sort it out — extending the period is the usual answer.

We may take the service down for maintenance, and will try to do it when the fewest people are practising.

We may suspend or close an account that breaks section 11, that is being used to harm the service or another person, or that we are required to act on by law. Where the circumstances allow it we will warn you first and give you a chance to put it right.

If we close your account for a breach, unused subscription allowance is forfeit. Unused top-up minutes are refunded pro rata, unless the breach was fraud, abuse of the payment system, or deliberate damage to the service.

We may also discontinue Mluvím altogether. If we do, we will give at least 30 days’ notice by email, stop charging subscriptions, and refund unused top-up minutes along with the unused part of the current period.

Mluvím is provided as it is. Beyond what these Terms and Czech law require, we make no warranties about it — in particular none that it is uninterrupted, error-free, fit for a purpose of your own, or that its Czech is always correct.

Where the law allows us to limit liability, our total liability to you for any claim connected with Mluvím is limited to the greater of 449 Kč or what you paid us in the 12 months before the claim arose. We are not liable for indirect or consequential loss, for lost opportunity, or for the outcome of an exam or a residency application.

We may change these Terms — the product changes, and so does the law around it. The current version always lives at this address, with the date it last changed at the top.

For a change that materially affects you — price, what a plan includes, your rights here — we will email the address on your account at least 14 days before it takes effect. If you do not accept the change, cancel before it does; continuing to use the product after that date means you accept it.

A change never applies retroactively to a purchase already made. The version in force when you bought is the one that governs it.

These Terms are governed by the law of the Czech Republic, and the Czech courts have jurisdiction. If you are a consumer resident in another EU member state this does not deprive you of the protection of the mandatory rules of your own country, and you may bring proceedings in the courts of the country where you live.

Before going to court, please write to us. Most of what becomes a dispute turns out to be a session that failed and minutes that can be put back.

If a clause of these Terms is found invalid, the rest stays in force. These Terms, together with the Privacy Policy, are the whole agreement between us about Mluvím.