Terms of Service

This document is a courtesy translation provided for information purposes only. The legally binding version is the Russian original: Читать на русском / Read in Russian.

Document summary (provided for convenience, has no independent legal force)

What this is. Cutor is a platform for educational lessons. By registering, using the Platform, or paying for a subscription, you accept these terms.
The content belongs to you. The lessons and materials you create belong to you. We acquire no rights to them and do not use your content or your data to train AI.
Payment. Access is free for Students. Tutors have a free plan and paid plans. We may change prices, but we will give at least 30 days' notice, and the current paid period will not become more expensive. The subscription renews automatically – you can cancel renewal at any time in the "Payments" section.
Refunds. For an unused paid period, money is refunded upon your request (sent to legal@cutor.ru) within 10 business days, in accordance with the Russian Law on the Protection of Consumer Rights.
AI credits. The credits included in a plan renew each month; additional purchased credits do not expire. Materials created by AI must be checked – we do not guarantee their accuracy.
Children. A minor's account is created by a parent (legal guardian): they register it with their own email, set a password, and give consent to the processing of data. Upon reaching the age of 18, a Student may transfer the account to themselves.
Your data. Stored on servers in Russia and processed in accordance with Federal Law No. 152-FZ. Consent to the processing of data is a separate document. You may at any time request, correct, or delete your data and withdraw your consent.
Availability and liability. The Platform is provided "as is"; we strive for availability of at least 99% per month (this is not a financial SLA). Consumer rights are not affected by the limitations of liability.
Rules. One account per person; abuse (for example, multiple free accounts) may result in restriction of functions. Parsing, hacking, and posting illegal content are prohibited.
Deletion and disputes. You can delete your account at any time in the settings. The agreement is governed by the law of the Russian Federation; as a consumer, you have the right to choose the jurisdiction.

The full text of the document is provided below.

Version dated 17 July 2026.

This document is a public offer (Article 437 of the Russian Civil Code (ГК РФ)) and defines the terms of use of the Cutor platform (hereinafter – the "Platform"). By accepting this offer (Article 438 of the Russian Civil Code (ГК РФ)), the User accepts all the terms of this Agreement in full.

Acceptance means performing any of the following actions: registering an account, using the functions of the Platform, or paying for a subscription.

1. Definitions

1.1. Platform – the Cutor software product, available at cutor.ru, intended for organizing and conducting educational lessons.

1.2. Administration – Sole Proprietor Mikhail Aleksandrovich Gindinson (ИП Гиндинсон М. А.), OGRNIP 326527500104423, INN 183511073463, contact email address: info@cutor.ru, who manages the Platform and is the rightsholder of the software.

1.3. User – a natural person, sole proprietor, or legal entity (through an authorized representative) that has registered an account on the Platform. A User may act in the role of a Tutor and/or a Student.

1.4. Tutor – a User registered in the "Tutor" role and using the Platform to create educational materials, conduct educational lessons, assign tasks, and monitor the progress of Students.

1.5. Student – a User registered in the "Student" role and undergoing instruction under the guidance of a Tutor.

1.6. Guest – a person who has received temporary access to a particular educational lesson via a guest link without registering an account. Guest data is stored for no more than 7 (seven) calendar days from the moment the guest link was last used.

1.7. Content – educational materials, exercises, lessons, courses, and any other results of intellectual activity created by the User using the tools of the Platform.

1.8. Subscription – access to the functions of the Platform to the extent determined by the selected plan.

1.9. AI credits – an internal unit of the Platform that determines the volume of use of artificial intelligence functions.

1.10. AI functions – functions of the Platform that use third-party artificial intelligence models to generate, check, and analyze educational materials. The Platform does not develop its own AI models.

2. Subject of the Agreement

2.1. The Administration grants the User access to the functions of the Platform on the terms of a simple (non-exclusive) license to use the software (Article 1235 of the Russian Civil Code (ГК РФ)). For Users in the "Student" role, access to the functions of the Platform is granted free of charge. For Users in the "Tutor" role, access is granted on the terms of the selected plan, including the free plan. The Administration reserves the right to change the terms of access with notice to Users in the manner provided for in Section 13 of this Agreement.

2.2. Access to the Platform is provided under the "software as a service" (SaaS) model. Exclusive rights to the Platform's software are not transferred to the User. The software is not installed on the User's devices; access is carried out through a web browser.

2.3. The Platform is a tool for organizing the educational process. The Administration is not a party to the relationship between the Tutor and the Student, does not control the content of lessons, and is not liable for the results of the educational process.

2.4. The Platform does not carry out educational activity within the meaning of Federal Law No. 273-FZ "On Education in the Russian Federation" and is not subject to licensing as an educational organization.

3. Registration and account

3.1. Creating an account is required to use the Platform. Registration is available using an email address or through authorization services (VK ID, Yandex ID).

3.2. By registering on the Platform, the User confirms that they are an adult and fully legally capable natural person (or an authorized representative of a legal entity or sole proprietor). Exceptions for minor Students are defined in clauses 3.7–3.10 of this Agreement.

3.3. The User undertakes to provide accurate data upon registration and to keep it up to date.

3.4. Each User may have only one account. Creating multiple accounts by one person is prohibited. The Platform uses automated means of detecting multiple accounts.

This restriction does not apply to a User combining the roles of Tutor and Student. Such a User may create one account for each role using different email addresses. Such accounts are not considered multiple within the meaning of this clause and are not subject to the restrictions provided for multiple accounts.

This restriction does not apply to a minor Student's account created by a parent (legal guardian) in accordance with clauses 3.7–3.8: such an account is separate from the parent's (legal guardian's) own account.

A User who is a parent (legal guardian) of a minor Student shall, for registering their own account (including in the Tutor role), use an email address different from the address to which the minor Student's account is registered.

3.5. The User bears full responsibility for the safekeeping of their account credentials and for all actions performed using their account.

3.6. Upon detecting unauthorized access to the account, the User is obliged to immediately notify the Administration through the Platform's feedback system.

Minor Students

3.7. A minor Student's account (a person under 18 years of age) is created by a parent (legal guardian) upon registration by invitation from a Tutor and only with the consent provided in the manner of clauses 3.8–3.9. A minor Student's account is registered to the email address of the parent (legal guardian) and provides access to the functions of the "Student" role. The login credentials are set by the parent (legal guardian).

3.8. During the registration of a minor, the parent (legal guardian) gives consent to the processing of the minor's personal data by accepting a separate document – the Consent to the Processing of Personal Data (cutor.ru/legal/consent). Registration cannot be completed without providing consent. A Tutor inviting a minor Student is obliged to ensure that registration is performed by the parent (legal guardian) and not by the minor themselves.

3.9. The parent (legal guardian), as the person who registered the minor's account, has access to their progress and activity. The Administration does not send marketing and advertising materials to minor Students.

3.10. The Administration does not independently verify the age of Students. Responsibility for the accuracy of information about age and for the existence of proper consent lies with the Tutor who invited the Student.

3.11. When processing the personal data of minors, enhanced protection measures are applied in accordance with Federal Law No. 152-FZ "On Personal Data". The data of minors is not used for marketing purposes and is not transferred to third parties, except in cases directly provided for by law.

3.12. If the Tutor did not indicate that the Student is a minor, the Platform processes data in the standard mode. Responsibility for the accuracy of information about age lies with the Tutor (clause 3.10).

3.13. Reaching the age of majority. After reaching the age of majority, a Student may transfer the account to themselves. To do this, the Student or their parent (legal guardian) sends, from the account settings, a transfer request to the email address specified upon registration. After the request is approved by the parent (legal guardian), the Student gains the ability to change the email address and password for logging into the account, accept the terms of the Terms of Service, and provide consent to the processing of personal data. If obtaining approval is impossible (for example, the email address is unavailable), the transfer is carried out upon contacting the support service at legal@cutor.ru with identity verification.

4. Plans and payment

4.1. The Platform provides a basic free plan and a range of paid plans. The set of available functions and usage limits are determined by the selected plan. The current list of plans with prices, functions, and limits is posted on the cutor.ru/pricing page.

4.2. Access to the basic free plan is granted by the Administration free of charge and is not a right of the User. The Administration has the right to restrict the functions of accounts using the free plan, including upon detecting signs of abuse. The restriction is lifted when the User switches to a paid plan.

4.3. Payment for a subscription is made on a prepayment basis for one calendar month. The billing period begins on the date the subscription is arranged.

4.4. Payment is made in Russian rubles by bank card (Visa, Mastercard, Mir) or by another method available on the Platform. When arranging a subscription, the User gives consent to the direct debit of funds from the specified bank card in accordance with the terms of automatic renewal (clause 4.6). Bank card details are not stored by the Administration; payment processing is carried out by the payment operator T-Bank (JSC "TBank", TIN 7710140679, BIC 044525974, correspondent account 30101810145250000974, legal address: 127287, Moscow, 2nd Khutorskaya str., 38A, bldg. 26, Russia).

4.5. Cancellation of a subscription without access to the account. In the event of loss of access to the account, the User may cancel the subscription on the cutor.ru/cancel page by providing the email address linked to the account and the last 4 digits of the bank card from which debits were made. After identity verification, the subscription is canceled in the manner of clause 4.6.

4.6. The subscription renews automatically upon the expiration of the paid period, unless the User has canceled the renewal at least 24 (twenty-four) hours before the end of the current period. Cancellation of renewal is available in the "Payments" section of the personal account.

4.7. In the event of an unsuccessful payment debit, the Administration makes repeated debit attempts within 7 (seven) calendar days. During the period of repeated debit attempts, access to the User's functions according to the current plan may be temporarily restricted. If, upon the expiration of the specified period, the debit was unsuccessful, the User is automatically transferred to the free plan. At the same time, all of the User's content (courses, lessons, Student data) is preserved. In the event of successful payment, access to the functions of the current plan is restored immediately.

4.8. A refund of funds for the unused part of the paid period is carried out in accordance with the Russian Law on the Protection of Consumer Rights (Article 32). The User has the right to refuse services at any time with a refund of the amount for the unused period, less the expenses actually incurred by the Administration. The refund is carried out upon the User's request, sent through the support service at legal@cutor.ru, within no more than 10 (ten) business days from the date of receipt of the request.

4.9. The Administration has the right to change the cost of plans. The User is notified of the change at least 30 (thirty) calendar days before the date the change comes into effect. The new cost applies starting from the User's first billing period occurring after the change comes into effect.

4.10. When switching to a more expensive plan, the difference is paid proportionally to the remaining part of the billing period. When switching to a cheaper plan, the new plan takes effect from the beginning of the next billing period. Until then, the User retains access to all functions of the current plan.

4.11. Subscription freeze. A User on a paid plan has the right to suspend the operation of the subscription (freeze) for a period of no more than 30 (thirty) calendar days, no more than 1 (one) time within 12 (twelve) months. During the freeze period: access to the Platform is retained in view mode; creating new tasks, conducting lessons, and generating materials using AI are not possible; AI credits are not consumed and are not zeroed out; all data, assigned tasks, and Student data are preserved in full; all enrolled Students remain linked to the Tutor's account; the billing period is extended by the freeze period. The User has the right to cancel the freeze early at any time in the "Payments" section of the personal account; upon early cancellation, the billing period is extended by the actual freeze period.

4.12. Long-term subscriptions. The Platform may offer subscriptions for 3, 6, or 12 months at a discount. The terms of long-term subscriptions, including the amount of the discount, are published on the cutor.ru/pricing page. Upon early termination of a long-term subscription, the User is refunded the cost of the unused full months. The used months are recalculated at the standard (without the long-term discount) cost of the plan; the expenses actually incurred by the Administration are withheld from the refunded amount. The refund is carried out upon the User's request in accordance with Article 32 of the Russian Law on the Protection of Consumer Rights within no more than 10 (ten) business days from the date of receipt of the request.

4.13. Payer Status. Payments for Services through the Platform (by bank card, via the Faster Payments System) are made by the User exclusively as a natural person and are not related to any business activity. By making a payment, the User confirms that this payment is not connected to any business activity on their part. Sole proprietors and legal entities paying for Services in the course of business activity shall make payments on the basis of an invoice, which can be requested by contacting invoice@cutor.ru.

5. AI credits

5.1. Each plan includes a certain number of AI credits per month. Unused AI credits included in the plan do not carry over to the next month and are zeroed out on the renewal date.

5.2. AI credits are consumed when using the AI functions of the Platform. The cost of each operation in AI credits is displayed before it is performed.

5.3. AI credits have no monetary equivalent and are not subject to exchange for funds, transfer to other Users, or refund.

5.4. Additional AI credits may be purchased in the form of packages or received as part of the referral program on the terms defined by a separate document.

5.5. AI credits purchased in the form of packages have no expiration date and carry over between billing periods. The purchase of AI credit packages is available only to Users on paid plans.

5.6. A refund of funds for purchased AI credit packages is carried out only with respect to unused credits, upon the User's request, and only in cases provided for by the legislation on the protection of consumer rights, within no more than 10 (ten) business days from the date of receipt of the request.

6. Content rights and intellectual property

6.1. Principle of Tutor sovereignty. Content created by a Tutor using the tools of the Platform (exercises, lessons, courses) is the intellectual property of the Tutor. The Administration does not acquire exclusive rights to the Tutor's Content.

6.2. The Tutor grants the Administration a non-exclusive license to store, process, and display the Content within the framework of the operation of the Platform (including display to Students to whom the Content is assigned by the Tutor). This license is valid for the duration of the placement of the Content on the Platform and terminates upon its deletion.

6.3. Upon deletion of a Tutor's account or upon deletion of Content by the Tutor themselves, the Administration deletes the Content from active storage within 30 (thirty) calendar days. Backup copies may be retained for 90 (ninety) calendar days in accordance with the backup policy.

6.4. Content created using AI functions. Materials generated by the AI functions of the Platform at the Tutor's request are considered the Tutor's Content after being saved in the workspace. The Tutor is responsible for checking the correctness of such materials before using them in the educational process. The Administration does not guarantee the accuracy, completeness, or pedagogical suitability of materials generated by AI.

6.5. User content is not used to train AI. The Administration does not use the Tutor's Content, Student data, or the results of task completion to train, fine-tune, or improve artificial intelligence models. The AI functions of the Platform use third-party models on API terms, without transferring Users' data to train these models.

6.6. The Administration has the right to use anonymized and aggregated data on the use of the Platform (without disclosing Content or personal data) for analytics and improving the quality of the service.

6.7. Export and data portability. The Tutor has the right to export their Content from the Platform in standard formats (DOCX, PDF) at any time. The export function is available in the Platform's interface on all plans, including the free one.

6.8. Images and media files. The Platform stores images uploaded by the Tutor as part of creating educational materials in cloud storage. Other media files (audio, video) are hosted by the Tutor on external hostings (Yandex Disk, Google Drive, VK Video, Vimeo, etc.); the Platform stores only URL links to such files. The Tutor guarantees that the uploaded images do not violate the legislation of the Russian Federation (including legislation on intellectual property) and the rights of third parties. The Administration is not liable for the availability, content, and legality of content hosted on external platforms. Upon deletion of content by the external hosting, the corresponding link on the Platform automatically ceases to function. Images and files posted by Users in session chats, as well as audio recordings created by Students during exercise completion, may be deleted by the Administration after 6 (six) months from the date of the respective session's completion. Text messages in chats are retained for the entire duration of the account.

6.9. Embeddable third-party content. The Tutor may embed interactive elements from approved services (the list is maintained by the Administration) into lessons. Responsibility for the content of embedded materials lies with the Tutor. Approved services have their own content moderation systems; upon deletion of content by the source service, the embedded element automatically ceases to display.

6.10. Managing the display of answers. The Tutor independently determines the conditions of Students' access to results and correct answers.

6.11. Rights to copy, decompile, modify, or distribute the Platform's software are not transferred to the User.

6.12. The User may not use automated data extraction tools (parsing, scraping) from the Platform.

7. User obligations

7.1. The User undertakes to:

a) comply with the terms of this Agreement and the current legislation of the Russian Federation;

b) not post on the Platform illegal, offensive, harmful content, or content that violates the rights of third parties, including copyright and related rights;

c) not take actions aimed at disrupting the operability of the Platform, including attempts at unauthorized access, injection of malicious code, or creating excessive load;

d) not use the Platform for purposes unrelated to organizing the educational process;

e) when using AI functions – check the generated materials for correctness and compliance with pedagogical goals before using them;

f) not copy or distribute the Content of other Tutors without their expressly stated consent;

g) not carry out reverse engineering, decompilation, or disassembly of the Platform's software;

h) not attempt to gain unauthorized access to the source code, databases, server infrastructure, or data of other Users;

i) not use automated tools to extract data, imitate user actions, or bypass the protection means of the Platform;

j) not take any other actions that may cause harm (including financial) to the Platform, the Administration, or other Users.

7.2. The Tutor is responsible for the Content they post on the Platform, including its legality, accuracy, and compliance with the rights of third parties.

7.3. Content moderation. The Administration does not carry out prior moderation of the Tutor's Content (pre-moderation). Tutors publish materials independently. The Administration reserves the right to delete or restrict access to Content that violates the legislation of the Russian Federation, the rights of third parties, or the terms of this Agreement, without prior notice. Deletion of Content is not grounds for a refund of funds.

8. Guest access

8.1. The Tutor has the right to create guest links to provide temporary access to particular lessons without registering an account. The number of guest links is determined by the Tutor's plan.

8.2. The Administration has the right to set limits on the number of guest accesses per month.

8.3. A guest link is valid for 24 (twenty-four) hours from the moment of creation. Upon expiration of the validity period, access via the link ceases.

8.4. Guest data (display name, task completion results) is stored for 7 (seven) calendar days from the moment of last use and is deleted automatically. Guest results are not saved in the educational history and are not subject to restoration.

8.5. Guest access is provided on an "as is" basis. Guests do not have an account, cannot save progress, and do not receive notifications.

9. Account security

9.1. The Platform provides the following account protection means: two-factor authentication (TOTP), identity verification when performing irreversible actions (deleting data, changing the password), automatic detection of multiple accounts. The User is recommended to activate two-factor authentication in the "Settings > Security" section. The Platform monitors unusual account activity. Upon detecting a login from a new device or from an unusual location, the User receives a notification.

9.2. The Administration applies technical and organizational measures to protect Users' data, including encryption in transit (TLS), regular backup (daily, encrypted), security monitoring, and an intrusion detection system. The list of measures may be updated without special notice.

10. Processing of personal data

10.1. The Administration is an operator of personal data and is registered in the register of operators of Roskomnadzor (reg. number 52-26-260092).

10.2. The processing of Users' personal data is carried out in accordance with Federal Law No. 152-FZ "On Personal Data" and the Privacy Policy of the Platform (cutor.ru/legal/privacy).

10.3. Consent to the processing of personal data is executed as a separate document (available at the link cutor.ru/legal/consent) in accordance with the requirements of Article 9 of Federal Law No. 152-FZ as amended by Federal Law No. 156-FZ of 24.06.2025. The consent may not be part of this Agreement.

10.4. Users' personal data is stored on servers located in the territory of the Russian Federation, in accordance with the requirements of Part 5 of Article 18 of Federal Law No. 152-FZ.

10.5. Student data. A Tutor inviting Students to the Platform acts as the person determining the purposes of processing Students' personal data in the part related to the educational process. The Administration processes Student data to ensure the operation of the Platform.

10.6. Guest data (display name) is stored for 7 (seven) calendar days and is deleted automatically.

10.7. In the event of an incident related to a leak of personal data or unauthorized access to it, the Administration undertakes to notify Roskomnadzor within 24 (twenty-four) hours and the data subjects within 72 (seventy-two) hours from the moment of detection of the incident.

10.8. The User has the right at any time to request information about their personal data, demand its clarification, blocking, or destruction, as well as to withdraw consent to processing, by sending a request to legal@cutor.ru.

11. Warranties and limitation of liability

11.1. The Platform is provided on an "as is" basis. The Administration makes reasonable efforts to ensure the availability of the Platform at least 99% of the time during a calendar month, excluding scheduled technical work. Information about scheduled work is published in advance through the Platform's notification system at least 24 hours beforehand. This obligation is not a warranty with financial liability (SLA).

11.2. AI functions: transparency and limitations. The AI functions of the Platform use third-party models via API. The Administration does not control the operation of these models and cannot guarantee the accuracy, completeness, currency, or pedagogical suitability of the generated materials. The data transmitted to the AI provider for processing a request does not include Users' personal data. The AI provider does not use the Platform's request data to train its models.

11.3. The Administration is not liable for the following:

a) the content and quality of Content posted by Tutors;

b) the results of the educational process organized using the Platform;

c) temporary unavailability of the Platform caused by technical work, the actions of third parties, or force majeure circumstances;

d) the quality, accuracy, and completeness of materials generated by the AI functions of the Platform;

e) losses incurred by the User as a result of their violation of the terms of this Agreement.

11.4. The aggregate liability of the Administration to a User using the Platform for business purposes (sole proprietor, legal entity) is limited to the amount actually paid by such User for the subscription during the last 3 (three) months preceding the circumstance that served as the basis for making the claim. With respect to consumer Users, the liability of the Administration is determined by the legislation on the protection of consumer rights without the limitations established by this clause.

11.5. The limitations of liability established by this Section do not apply in cases where the limitation of liability is prohibited by the legislation of the Russian Federation.

12. Suspension and termination

12.1. The Administration has the right to suspend, restrict, or terminate the User's access to the Platform in the following cases:

a) the User's violation of the terms of this Agreement;

b) detection of multiple accounts belonging to one person;

c) use of the Platform in ways that harm its operability or security;

d) at the request of an authorized state body in accordance with the law.

12.2. The Administration notifies the User of the suspension or termination of access by email, indicating the reason and the period of suspension. The User is given the opportunity to appeal the decision by contacting legal@cutor.ru.

12.3. Deletion of the account by the User. The User has the right to delete their account at any time through the "Settings" section of the personal account. Upon deletion of the account:

a) the Tutor's Content is deleted from active storage (backup copies – up to 90 days);

b) the cost of the unused subscription is not refunded (except in cases provided for in clause 4.8);

c) AI credits included in the plan and the referral balance are annulled without compensation; unused AI credits purchased for a fee in the form of packages (clause 5.5) are refunded to the User in monetary form upon their request, less the expenses actually incurred by the Administration, in accordance with the legislation on the protection of consumer rights, within no more than 10 (ten) business days from the date of receipt of the request;

d) personal data is deleted or anonymized in accordance with the Privacy Policy;

e) the educational connection of the deleted Tutor with their Students is terminated. The accounts of Students who are independent Users (including the accounts of minor Students registered by a parent) are preserved together with their educational data. The results of tasks assigned by the deleted Tutor are retained by the corresponding Students in a form anonymized from the Tutor.

12.4. Deletion of inactive accounts. The Administration has the right to delete the account of a User who has not shown activity for 24 (twenty-four) months, having given the User prior notice of 30 (thirty) calendar days by email.

13. Amendment of the terms of the Agreement

13.1. The Administration has the right to amend the terms of this Agreement. The User is notified of the amendments at least 30 (thirty) calendar days before the amendments come into effect through the Platform's notification system and/or by email.

13.2. The amendments come into effect upon the expiration of the 30-day notice period. For Users with an active paid subscription, amendments affecting the cost are applied in the manner of clause 4.9.

13.3. If the User does not agree with the amendments, they have the right to cease using the Platform and delete their account before the date the amendments come into effect; in this case, the cost of the unused paid period is refunded (clause 4.8). Use of the Platform after the amendments come into effect means agreement with them. Amendments that worsen the position of a consumer User are applied only with their consent in accordance with the legislation on the protection of consumer rights.

14. Dispute resolution

14.1. This Agreement is governed by the legislation of the Russian Federation.

14.2. Before applying to the court, the parties are obliged to comply with the mandatory pre-trial (claim) procedure. A claim is sent in writing by email: to the Administration's address – legal@cutor.ru, to the User's address – to the address specified in the account. The period for considering a claim is 30 (thirty) calendar days from the date of receipt.

14.3. If agreement cannot be reached, the dispute is resolved in court at the location of the Administration, except in cases where the applicable rules on the protection of consumer rights provide for jurisdiction at the choice of the plaintiff.

15. Final provisions

15.1. The invalidity of individual provisions of this Agreement does not entail the invalidity of the Agreement as a whole. In the event that any provision is recognized as invalid, the parties undertake to replace it with a provision that most closely corresponds to the original intention.

15.2. The following documents are an integral part of this Agreement:

Privacy Policy (cutor.ru/legal/privacy)
Consent to the Processing of Personal Data (cutor.ru/legal/consent)
Referral Program Terms (cutor.ru/legal/referral)
Cookie Policy (cutor.ru/legal/cookies)

In the event of a conflict between this Agreement and the specified documents, the provisions of this Agreement apply.

15.3. This Agreement comes into effect from the moment of acceptance by the User and is valid until the deletion of the account or the termination of the Agreement on other grounds.

15.4. The current version of the Agreement is posted at cutor.ru/legal/terms. Previous versions are stored in the archive and are available upon request.