Terms of Service

Date of Revision: 19 June 2026

1. Introduction

Speak4AI (the "Service") is operated by DevPro s.r.o., a company registered in Slovakia, address: Frana Mojtu 18, Nitra, 949 01, Slovakia, European Union (hereinafter "we", "us", or "our").

Speak4AI is an online language-learning application that uses artificial intelligence ("AI") algorithms to generate virtual, fictional language tutors (the "AI Tutors"). The Service generates text messages, voice notes, and live video conversations so that you can practise speaking, listening, and writing in the language you are learning (collectively, the "Services"). Parts of the Services may require you to create a user account.

These Terms of Service (the "TOS") set forth the legally binding terms for your use of the Service. By accessing and/or using the Service, you agree to be bound by these TOS and all other Terms and Policies published on https://speak4ai.com. If you do not agree, please stop using the Service immediately.

The Service is intended for personal and non-commercial use only. You agree not to use the Service for any illegal or unauthorized purpose.

For purposes of the TOS, "you" and "your" means you as the user of the Service.

2. Prohibited Uses

You may not use our Services for any illegal, harmful, or abusive activity. For example, you may not:

a) Use our Services in a way that infringes, misappropriates, or violates anyone's rights.

b) Modify, copy, lease, sell, or distribute any of our Services.

c) Attempt to or assist anyone to reverse engineer, decompile, or discover the source code or underlying components of our Services, including our models, algorithms, or systems (except to the extent this restriction is prohibited by applicable law).

d) Automatically or programmatically extract data or Output (defined below).

e) Represent that Output was human-generated when it was not.

f) Interfere with or disrupt our Services, including circumvent any rate limits or restrictions or bypass any protective measures or safety mitigations we put on our Services.

g) Use Output to develop models that compete with Speak4AI.

h) Use the Service to harass, bully, stalk, threaten, or intimidate any person, whether real or fictional.

i) Use the Service for any fraudulent or deceptive activity, including scams, phishing, or social engineering.

j) Impersonate any person or entity, or falsely state or misrepresent your affiliation with any person or entity.

k) Generate, solicit, or distribute content that depicts, promotes, or facilitates the sexual exploitation of minors in any form.

l) Use the Service to generate content that promotes terrorism, violence, self-harm, or any activity that is illegal in your jurisdiction.

3. Account

Parts of the Services may require you to create a user account using a user email and password (the "Protected Areas"). You agree to access Protected Areas only using your registered email address and password. You may sign up or log in using your email address.

You represent and warrant that all information you submit to create a user account is true and correct and that you have full rights to submit such information.

You agree to keep your account information current, accurate, and correct at all times. You agree to protect the confidentiality of your account, not to share access, and not to disclose your password to any third party.

You are fully responsible for all activities occurring under your account. Your account is non-transferable and cannot be sold, lent, or shared with any other person.

Any violation of these TOS, including failure to maintain updated and correct information, may result in account cancellation at our sole discretion.

We reserve the right to terminate, restrict, suspend, or limit your account — including but not limited to applying rate limits, reducing functionality, or restricting visibility — or revoke your access to the Service, at any time and without prior notice, if we suspect you have violated these TOS or any other Terms or Policies, or for any other reason at our sole discretion. You agree that we will not be liable to you or any third party for any denial of use, change of costs, rate limiting, suspension, or termination of your account.

4. Subscription

We retain the right to provide certain Services exclusively for paid subscribers. The subscription begins after the initial payment and shall be performed pursuant to the fee terms presented on our website at the time of purchase. You are responsible for payment of all fees, charges, and taxes related to the transaction.

If you subscribed through a third-party distribution platform not recognized by us, we are not responsible for any costs or liability arising from that action.

5. User Safety

We prioritize the safety and well-being of our users. We strongly advise all users to exercise caution and refrain from disclosing sensitive personal information during conversations with AI Tutors. This includes, but is not limited to, financial details, addresses, contact information, or passwords.

While we implement security measures to safeguard user data, we cannot guarantee the security of information shared during interactions. Users are solely responsible for protecting their personal information. We encourage users to report any suspicious or inappropriate behavior encountered on the platform.

6. Your Warranties

You understand and warrant that:

a) If you are entering into these TOS on behalf of another person, you are fully and duly authorized by such person to do so, and these TOS will be binding upon both you and that person;

b) You are of the legal age in the jurisdiction of your place of domicile to form a binding contract with us;

c) If you are a minor in the jurisdiction of your place of domicile, you may only use the Service under the supervision and with the consent of a parent or legal guardian.

7. Intellectual Property

The intellectual property in the Service and embedded materials (including without limitation technology, systems, files, documents, text, photographs, information, images, videos, audios, and software) are owned by or licensed to Speak4AI. You may use the Service and its content on your devices for your personal use only.

We hereby grant you a license for personal use only. This license does not constitute a transfer of title. This license shall automatically terminate if you violate these TOS and may be terminated by us at any time.

All intellectual property rights associated with Speak4AI, including the AI Tutors, platform design, logos, and any proprietary software or technology, are the sole property of Speak4AI or its licensors. Users are prohibited from reproducing, modifying, distributing, or using any intellectual property without explicit authorization. Unauthorized use may result in legal consequences.

8. Your Content

You may provide input within the Service ("Input") and receive output from the Services based on the Input ("Output"). Input and Output are collectively referred to as "Content." Input is limited to chats and prompts visible only to you within your private account. You represent and warrant that you have all rights, licenses, and permissions needed to provide Input within our Service.

You retain your intellectual property ownership rights over the Input. We will never claim ownership of your Input, but we require a license from you in order to use it.

When you use Speak4AI or its associated Services to upload Input covered by intellectual property rights, you grant to us a non-exclusive, royalty-free, transferable, sub-licensable, worldwide license to use, distribute, modify, run, copy, publicly display, translate, or otherwise create derivative works of your content in a manner consistent with our Privacy Policy.

The license you grant us can be terminated at any time by deleting your Input or account. However, to the extent that we (or our partners) have used your Input in connection with commercial or sponsored content, the license will continue until the relevant content has been discontinued by us.

You give us permission to use your username and other identifying information associated with your account in a manner consistent with your privacy preferences and our Privacy Policy.

9. Restrictions of Conduct and Content

9.1 Rules and Restrictions

In accessing and using the Service, you agree to abide by the following:

a) You will not modify, translate, adapt, or reformat the Service;

b) You will not decipher, decompile, disassemble, or reverse-engineer the software or materials comprising the Service (except where permitted by applicable local law, and only to the extent disclosed in advance in writing to us);

c) You will not interfere with or circumvent any security feature of the Service;

d) You will not use the Service to gain unauthorized access to our or any third party's data, systems, or networks;

e) You will not use the Service in any manner that could damage, disable, overburden, impair, or interfere with our systems and networks, or interfere with other users' use of the Service;

f) You will not use the Service in any way that may expose us and others to liability or damages;

g) You will not use the Service for illegal ends, to offend others, or to commit any criminal offense;

h) You will not remove, change, or obscure any copyright, trademark, or proprietary rights notices contained in the Service;

i) You will comply with all applicable laws in your access and use of the Service, including the laws of your country or district if you live outside of the Slovak Republic.

9.2 Content Responsibility

You, as a user of the Service, are solely responsible for the Output generated by the AI Tutors through text messages, voice messages, and video conversations. The AI Tutors respond based on the conversations you lead and the parameters you select. You understand and agree that Speak4AI does not control or endorse the content generated by the AI Tutors. Therefore, you acknowledge that you are fully responsible for the Output and for your own actions while using the Service.

You must ensure that your interactions with the AI Tutors comply with applicable laws, regulations, and these TOS, and you shall not engage in any illegal, unethical, or harmful activities through the Service.

9.3 Content Moderation

We value the safety and integrity of all users. While conversations between users and AI Tutors are generally confidential, we have implemented a content moderation filter to ensure compliance with our Terms and Policies. If the moderation filter detects any content that violates our terms, we reserve the right to manually review the flagged content and take appropriate action, including terminating the user's account.

We reserve the right, but are not obligated, to reject and/or remove any user content that we believe, in our sole discretion, violates these provisions. If you have noticed any violation, please contact us at [email protected] or directly report it through the "Contact" section.

10. Payments

Once you have reached the limit of free messages, you will be taken to the payment page, where you can choose a subscription plan or a token package, payable by credit or debit card and other alternative payment methods available in specific countries.

By purchasing a subscription, you expressly agree to recurring, automatic payments. Your subscription is set to renew automatically at the end of each subscription period, extending for the same duration and at the then-current rate. The payment will be processed automatically on the first day of the upcoming period using the payment method on file. It is your responsibility to ensure that your payment method is valid and has sufficient funds. You may cancel auto-renewal at any time through your account settings before the next billing date.

11. Fulfillment Policy

11.1 Cancellation

All details about your subscription, including start date, end date, and type of subscription plan, can be found under "My Profile" and then "Settings" of your account.

You may cancel your subscription at any time by going to "Settings" of your account and activating the "Unsubscribe" button. If you choose to cancel, your subscription will remain active until the end of the current billing period, and you will not be charged for the subsequent period.

11.2 Access Upon Cancellation

Upon cancellation, you will retain access to your account and all associated features until the end of the current billing period. At the conclusion of this billing period:

a) Platform Access: Your access will be restricted to the free version of the platform. You will no longer have access to premium features and content exclusive to paid subscriptions.

b) Token Usage: Any remaining tokens in your account will expire and become unusable. Please utilize your tokens before the end of the current billing period, as they will not carry over or be refunded.

You may resubscribe at any time to regain access to premium features. Tokens from previous cancelled subscriptions that were not used cannot be carried over to a new subscription. Each subscription period is treated independently.

If a subscription or token purchase is refunded, the subscription is deemed immediately cancelled. All access to premium features and remaining tokens will be revoked at the time of refund processing.

If a client files a chargeback request, the subscription is immediately cancelled. All access and remaining tokens will be revoked at the time the chargeback request is filed. Additionally, we reserve the right to permanently block the associated account, payment method, and any related accounts. Fraudulent or abusive chargeback claims may be contested by us, and we may pursue recovery of the disputed amount, including any fees and administrative costs incurred as a result of the chargeback.

11.3 Modifying Subscription Plans

You can upgrade or downgrade your subscription plan at any time. Changes will take effect at the beginning of the next billing cycle.

11.4 EU Right of Withdrawal

If you are a consumer residing in the European Union, you have the right to withdraw from a purchase within 14 days without giving any reason, in accordance with Directive 2011/83/EU.

However, by purchasing a subscription or tokens and beginning to use the Service, you expressly consent to the immediate performance of the digital content and acknowledge that you lose your right of withdrawal once the digital content has been fully provided or the service has been actively used. You will be asked to confirm this waiver at checkout.

For full details, including the model withdrawal form required under Annex I(B) of Directive 2011/83/EU, please consult our Right of Withdrawal page.

11.5 Refund Policy

11.5.1 Subscription Refund

You have 24 hours after your payment to request a refund. No refunds will be issued if your request is made more than 24 hours after payment. Regardless of the time elapsed, a refund will be denied if you have used more than 20 tokens.

We cannot issue refunds for technical issues on the user's side. We can only refund subscriptions purchased via card.

11.5.2 Token Refund

For purchases made in error, there is no guarantee of a refund unless the error occurred on our end. We can only refund token packages purchased via card.

12. No Guarantee of Accuracy

By using our Services, you acknowledge that content generated on demand may not be accurate. As the content is generated by artificial intelligence, we cannot guarantee the accuracy of any translation, correction, grammar explanation, or other language guidance produced by the AI Tutors. However, we make every effort to constantly improve our tools and provide a better service.

You accept and agree that any use of Outputs from our Service is at your sole risk and you will not rely on Output as a sole source of truth, as authoritative language instruction, or as a substitute for professional advice.

13. Disclaimer of Warranties and Limitation of Liability

OUR SERVICES ARE PROVIDED "AS IS" AND "AS AVAILABLE." EXCEPT TO THE EXTENT PROHIBITED BY LAW, WE AND OUR AFFILIATES AND LICENSORS MAKE NO WARRANTIES (EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE) WITH RESPECT TO THE SERVICES, AND DISCLAIM ALL WARRANTIES INCLUDING, BUT NOT LIMITED TO, WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, SATISFACTORY QUALITY, NON-INFRINGEMENT, AND QUIET ENJOYMENT.

WE DO NOT WARRANT THAT:

a) THE SERVICES WILL BE TIMELY, ERROR-FREE, SECURE, OR UNINTERRUPTED;

b) THE SERVICES WILL MEET YOUR REQUIREMENTS;

c) THE ACCURACY, LIKELY RESULTS, OR RELIABILITY OF THE USE OF THE MATERIALS ON OUR WEBSITE;

d) ANY ERRORS OR MALFUNCTIONS IN THE SERVICES WILL BE CORRECTED.

NEITHER WE NOR ANY OF OUR AFFILIATES OR LICENSORS WILL BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES, INCLUDING DAMAGES FOR LOSS OF PROFITS, GOODWILL, USE, OR DATA OR OTHER LOSSES, EVEN IF WE HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. OUR AGGREGATE LIABILITY UNDER THESE TERMS WILL NOT EXCEED THE GREATER OF THE AMOUNT YOU PAID FOR THE SERVICE THAT GAVE RISE TO THE CLAIM DURING THE 12 MONTHS BEFORE THE LIABILITY AROSE OR ONE HUNDRED DOLLARS ($100). THE LIMITATIONS IN THIS SECTION APPLY ONLY TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW.

Some countries and states do not allow the disclaimer of certain warranties or the limitation of certain damages, so some or all of the terms above may not apply to you, and you may have additional rights. In that case, these Terms only limit our responsibilities to the maximum extent permissible in your country of residence.

DevPro s.r.o.'S AFFILIATES, SUPPLIERS, LICENSORS, AND DISTRIBUTORS ARE INTENDED THIRD-PARTY BENEFICIARIES OF THIS SECTION.

14. Links to Third-Party Websites and Services

The Service may include links or allow access to third-party websites and services. Their presence does not mean that they are recommended by us, and we do not guarantee their safety or conformity with your expectations. We assume no obligations for any damage or loss resulting from the use of any content, goods, or services available on or through any such third-party websites and services.

It is your responsibility to ensure that anything you select for use or download is free of viruses, worms, Trojan horses, and other items of a destructive nature. If you decide to access a third-party service, you do so entirely at your own risk and should review their terms of use and privacy policy.

15. Governing Law and Dispute Resolution

These TOS shall be governed by and construed in accordance with the laws of the Slovak Republic without giving effect to its conflict of law provisions, regardless of your location. If you are a consumer residing in the European Union, you also enjoy the protection afforded to you by the mandatory provisions of the law of your country of residence.

Any dispute arising out of or in connection with the TOS, including any question regarding their existence, validity, or termination, shall be referred to and finally resolved by the courts of the Slovak Republic. If you are a consumer in the EU, you may also bring proceedings in the courts of your country of residence.

You may also use the EU Online Dispute Resolution platform at https://ec.europa.eu/consumers/odr.

16. Changes to Terms and Policies

We reserve the right to update these TOS and any other Terms and Policies from time to time at our sole discretion. We may notify you of changes by making the revised version accessible through the Service, which changes will become effective immediately. Please review these documents periodically by referring to the "Date of Revision" at the top.

If you do not agree with the revised Terms, you should immediately stop using the Service. Your continued access or use after changes have been posted constitutes your agreement and consent to such changes.

We reserve the right to change the scope of the Services and change applicable fees at any time without notice. We may stop or restrict provision of the Services in full or in part toward a certain user, and we retain the right to discontinue the Services without prior notice.

17. Termination and Assignment

These TOS will continue in effect until terminated by either you or us. You may terminate these TOS at any time by ceasing your access and use of the Service. If you are a paid subscriber, the processing of fees shall be subject to the respective rules of the payment processor recognized by us.

We may terminate these TOS and your right to access or use the Service, with or without notice, for any reason, including suspected breach of these TOS.

We reserve the right to assign, transfer, or subcontract the Services to any third party. Notice will be posted on the Service, and your continued use constitutes consent to such assignment.

18. Miscellaneous

If any provision of these TOS is found to be unlawful, void, or unenforceable, that provision will not affect the validity and enforceability of the remaining provisions and shall be enforced to the maximum extent possible.

These TOS, together with the Privacy Policy and other published Terms and Policies, constitute the entire agreement between us and you pertaining to your access and use of the Service and supersede any prior or contemporaneous agreements.

We will collect and process your information in accordance with our Privacy Policy.

19. AI Content Disclaimer

The AI Tutors are artificial intelligence characters designed to simulate human-like conversation for language-learning practice, but they do not possess genuine emotions, consciousness, intentions, or the ability to fulfill promises in the real world. All interactions with AI Tutors are simulated — they are not real teachers and do not constitute certified or accredited language instruction.

All conversations between users and AI Tutors on Speak4AI are generated by machine-learning algorithms — not by human beings. Any guidance, correction, or explanation provided may contain errors and should be verified against authoritative sources where accuracy matters.

You agree not to rely on AI Tutors for medical advice, legal advice, financial advice, or any other professional guidance. The Service is intended for language-practice and educational purposes only.

We do not assume responsibility for any misunderstandings arising from the AI-generated nature of the conversations.

20. Digital Services Act (DSA) Compliance

As an EU-based platform, we comply with the Digital Services Act (Regulation (EU) 2022/2065). For full details on our DSA obligations, content moderation practices, reporting mechanisms, complaints and appeals procedures, and transparency commitments, please consult our DSA Compliance page.

Our single point of contact for EU authorities, users, and the European Commission regarding DSA matters is: [email protected].

21. Related Policies

The following documents form part of our Terms and Policies and are incorporated by reference: