Sintaxon Terms

1. About Sintaxon
 

1.1. Sintaxon, available at sintaxon.com (the “Platform”), is operated by Eidolink Digital LTD, company number 17263092, whose registered address is 71-75 Shelton Street, Covent Garden, London, United Kingdom, WC2H 9JQ (“Sintaxon”, “we”, “us”, or “our”).

1.2. These Terms govern your account, purchases of Axons, and use of the Platform’s music, audio, and related services (the “Services”). “You” means the person using the Services or, where applicable, the business that person is authorised to represent.

1.3. Technical support, payment issues, and refund requests should be sent to techcrew@sintaxon.com. General enquiries and legal or intellectual property notices should be sent to frequency@sintaxon.com.

2. Eligibility and Acceptance

 

2.1. You must be at least 18 years old and legally capable of entering into a binding contract to create an account or use the Services.

2.2. By accepting these Terms when registering or placing an order, you agree to be bound by them. If you use the Services for a business, you confirm that you have authority to bind that business.

2.3. Information presented for a particular purchase or generation, including its price and applicable promotional conditions, forms part of that transaction. Nothing in these Terms excludes rights that applicable law gives you and that cannot lawfully be waived.

3. Accounts and Security

 

3.1. Each user may maintain one account. You must provide accurate registration information and keep it reasonably up to date. Creating additional accounts to obtain repeated promotional benefits, evade restrictions, or circumvent a suspension is prohibited.

3.2. You are responsible for keeping your credentials secure and for activity that you authorise through your account. Contact techcrew@sintaxon.com promptly if you suspect unauthorised access.

3.3. Shared use is not automatically prohibited. However, sharing access creates security risks and does not transfer ownership of the account or any Axons. Every person whom you authorise to use your account must be at least 18 and comply with these Terms.

3.4. We may restrict or close a shared account where its use involves fraud, a material breach of these Terms, circumvention of restrictions, or a security risk that cannot reasonably be resolved. Shared use alone does not give us an unrestricted right to retain your purchased balance.

3.5. Verification and Security Checks. To protect the Platform against fraud, unauthorised transactions, and security risks, or to investigate suspected material breaches of these Terms, we reserve the right to request additional information or documentation to verify your identity, account ownership, or payment details. We may temporarily suspend your account or restrict access to certain Services while this verification is pending. Failure to provide satisfactory documentation within a reasonable timeframe may result in permanent account closure.

4. Services and Generation Requests

 

4.1. The Platform provides music generation and audio processing features, including Music Generator, Remix, Inpaint, Extend, Text to Speech, Sound Generator, Extraction, Voice Changer, Sing Over Instrumental, Lyrics Generator, Audio to MIDI, Audio Cutter, Audio Speed Changer, Audio Transcribe, Cover Song, Deecho, Denoise, Dereverb, Key & BPM Extraction, File Conversion, Audio Mastering, Image to Song, Text to Dialogue, Dubbing, and Forced Alignment.

4.2. Each feature’s interface describes the relevant inputs, available settings, and applicable file requirements. You are responsible for submitting compatible files and checking your selections before confirming a request.

4.3. The Services operate on a pay-as-you-go basis. The Axon price per generation or processing request is displayed before you submit it. By confirming the request, you authorise deduction of the displayed amount from your balance.

4.4. AI-generated results may vary between requests and may contain imperfections, unexpected material, or similarities to other outputs. A particular creative result, exclusive output, or commercial outcome is not guaranteed. This does not limit our obligation to supply Services and digital content in accordance with applicable law and their description.

4.5. If a request fails or you experience a technical difficulty, contact techcrew@sintaxon.com with enough information to identify the affected request. We will investigate and consider the appropriate resolution, including reprocessing, restoring Axons, or a refund where appropriate or legally required.

5. Axons and Purchases

5.1. Axons are digital tokens used exclusively within the Sintaxon Platform. They represent an internal account balance that can be spent on the Services. For the Platform’s pricing purposes, 1 Axon equals EUR 0.01. This pricing reference does not make Axons a currency, bank deposit, or investment, and does not create a right to redeem them for money. Axons can be purchased through the relevant pack purchase section or balance top-up window. Available packages, minimum and maximum purchase amounts, and the number of Axons included are displayed before purchase and may change for future transactions. Purchased Axons are added to your account balance once payment has been successfully confirmed. Purchases are available in EUR, USD, and GBP. For purchases in a currency other than EUR, the amount payable and the number of Axons to be added to your balance are displayed before confirmation. The details presented when you confirm a purchase govern that transaction.

5.2. Axons can be used to pay for music generation, audio processing, and other paid features available through Sintaxon. The number of Axons required for each generation or processing request is displayed before you submit it. By confirming a request, you authorise Sintaxon to deduct the displayed amount from your account balance. You must have a sufficient balance to complete the request. Axons may be used across available paid features, subject to any conditions clearly stated for a particular feature or promotion.

5.3. Axons cannot be withdrawn, redeemed for cash, exchanged for other currencies or digital assets, sold, traded, gifted, or transferred between accounts. They cannot be used to pay other users or purchase goods or services outside Sintaxon. Axons do not earn interest or provide ownership, profit-sharing, or investment rights. You must not attempt to obtain, duplicate, transfer, or manipulate Axons through unauthorised means, technical exploits, fraudulent transactions, or misuse of promotional offers. These restrictions do not prevent a refund approved under Section 6 or required by applicable law.

5.4. Axons do not expire while your account remains open. An unused balance does not expire solely because time has passed. If you request permanent account closure, or your account is permanently closed because of a breach of these Terms, any remaining Axons will be cancelled and, as a general policy, forfeited. However, this does not override any applicable right to a refund or permit Sintaxon to retain prepaid amounts where doing so would be unlawful or unfair. Any retention of amounts following a breach must be legally justified and proportionate. A temporary account suspension may prevent you from using your Axons but does not by itself cause them to expire. Further information about account closure is provided in Section 11.

5.5. Sintaxon may occasionally offer bonus Axons, discounted packages, or other promotional benefits. The relevant offer will explain its eligibility requirements, campaign period, qualifying actions or purchases, and any restrictions. Promotional Axons are added to your account balance once the relevant conditions have been met. They are subject to the same internal-use and transfer restrictions as purchased Axons and do not expire while your account remains open. The end of a promotional campaign does not, by itself, remove promotional Axons already validly added to your balance. Promotional benefits may be withheld or reversed where obtained through fraud, duplicate accounts, technical exploitation, or a breach of the published promotional conditions. If a qualifying purchase is refunded or reversed, associated bonus Axons may also be removed. Promotional Axons awarded without payment do not create a separate entitlement to a cash refund.

5.6. Axon purchases are generally non-refundable. However, refund requests are reviewed individually, taking account of the circumstances, use of the purchased Axons, technical issues, and applicable law. This general policy does not limit mandatory consumer rights or any refund or remedy required by law. For the full refund conditions, cancellation rights, and instructions for submitting a request, please see Section 6 - Refunds and Consumer Rights.

6. Refunds and Consumer Rights

 

6.1. As a general commercial policy, Axon purchases are non-refundable. Nevertheless, we review refund requests individually, taking account of the circumstances, transaction history, use of the purchased Axons, and any technical problems. This policy applies only to refunds that are discretionary; statutory refunds and other mandatory remedies are not discretionary.

6.2. To request a refund, email techcrew@sintaxon.com with the email address associated with your account, the transaction reference if available, and an explanation of your request. Do not send passwords or full payment-card details.

6.3. If you are a consumer, you may have a statutory right to cancel a distance contract within 14 days of its conclusion. Where that right applies, you can exercise it by sending us a clear statement of your decision to cancel within the applicable period. You do not have to give a reason.

6.4. Where we supply digital content during an applicable cancellation period, loss of the cancellation right depends on the legal requirements being met, including obtaining your prior express consent to immediate supply and your acknowledgement that you will lose that right when supply begins, and providing the required confirmation. Accepting these Terms alone does not constitute that separate consent or acknowledgement.

6.5. Where a transaction is legally treated as a service, different cancellation rules may apply. If you expressly request performance during the cancellation period, a proportionate charge for Services supplied before cancellation may be payable where permitted by law. The cancellation right is lost after full performance only where all applicable consent and acknowledgement requirements have been met.

6.6. Nothing in these Terms removes your rights if Services or digital content are defective, not supplied, or not as described. Depending on the circumstances and applicable law, remedies may include repeat performance, repair or replacement, a price reduction, or a refund. We will provide any mandatory refund within the period required by law.

6.7. Where a purchase is refunded, the corresponding unused Axons will be removed from your balance. Bonus Axons awarded solely because of that purchase may also be reversed. Neither Axon adjustments nor the general non-refundable policy will be used to defeat a statutory remedy.

7. Uploaded Content and Privacy

 

7.1. Depending on the feature, you may submit text, lyrics, images, audio, voice recordings, and other supported files (“Inputs”). You retain any rights you hold in your Inputs.

7.2. You must own your Inputs or have the permissions necessary to upload them, have them processed, and use the resulting content as intended. This includes any relevant rights in musical compositions, lyrics, recordings, performances, voices, images, and personal information.

7.3. You give us a limited, non-exclusive permission to host, reproduce, transmit, and process your Inputs to fulfil your requests, provide support, secure the Services, and meet legal obligations. This includes processing through service providers as necessary for those purposes. It does not transfer ownership of your Inputs to Sintaxon or give us a general right to publish them for advertising.

7.4. Inputs and generated content are private within the Platform and are not made publicly accessible to other users by default. Necessary processing by authorised personnel or service providers, and disclosure required by law, are not excluded by this provision. Personal information is handled as explained in our Privacy Policy.

7.5. Sintaxon does not train AI models. We do not claim a right under these Terms to use your Inputs or generated content to train our own AI models.

8. Generated Content and Synthetic Voices

 

8.1. Subject to applicable law and the rights of others, Sintaxon permits you to use content generated or processed through your account (“Outputs”) for personal or commercial purposes, including editing, publication, distribution, monetisation, and client work. Sintaxon does not require attribution solely because you used the Platform.

8.2. This permission applies to rights that Sintaxon is entitled to grant. It does not grant rights in someone else’s song, recording, lyrics, voice, image, or other protected material, and it does not guarantee that an Output qualifies for copyright protection or exclusive ownership.

8.3. You are responsible for reviewing Outputs before using or publishing them and obtaining any additional permissions, licences, or consents required for your intended use. In particular, processing a cover song or an existing recording does not itself clear the underlying rights. You must not claim exclusive rights that you do not hold, including through automated rights-management or Content ID systems.

8.4. Voices generated or transformed by the Platform’s AI features are synthetic simulations. Their availability or resemblance to a real person does not mean that person participated in, authorised, or endorsed the Output. The Platform does not grant permission to impersonate a person or misrepresent their involvement.

8.5. You must not use synthetic voices or other Outputs for fraud, misleading impersonation, fabricated endorsements, or infringement of another person’s rights. You are responsible for any legally required disclosure that content has been artificially generated or manipulated.

8.6. You are responsible for your choices about how to use and distribute Outputs. Sintaxon does not endorse those uses merely by processing a request. This allocation of responsibility does not exclude any liability of Sintaxon that applicable law does not permit us to exclude.

9. Prohibited Conduct

 

9.1. You must not use the Platform to:

• Violate applicable law or infringe intellectual property, privacy, confidentiality, or other rights.

• Commit fraud, facilitate scams, fabricate misleading endorsements, or unlawfully impersonate another person.

• Create or distribute child sexual exploitation material, non-consensual intimate content, unlawful threats, targeted harassment, or content inciting violence.

• Upload malware, attempt unauthorised access, interfere with the Platform’s security, or deliberately disrupt its operation.

• Bypass payment requirements, access controls, technical restrictions, or promotional eligibility rules.

• Make unauthorised purchases or use payment details without permission.

• Create additional accounts to evade enforcement or repeatedly obtain benefits intended for one user.

9.2. You must not use Inputs or Outputs in a way that falsely suggests an association with or endorsement by Sintaxon or another person or business.

10. Complaints and Content Restrictions

 

10.1. Report suspected unlawful or infringing content to frequency@sintaxon.com. Include your contact details, information identifying the material, the rights or laws concerned, and supporting information sufficient for us to assess the report.

10.2. We may restrict access to particular content or requests where reasonably necessary to investigate a credible complaint, address a breach, protect users or the Platform, or comply with law. Any action will take account of the nature and seriousness of the issue.

10.3. You may ask us to review a restriction or suspension by contacting techcrew@sintaxon.com and providing relevant information. Where lawful and reasonably practicable, we will explain the action and provide an opportunity to respond.

11. Suspension and Account Closure

 

11.1. You may request account closure by contacting techcrew@sintaxon.com. We may need to verify that you control the account before completing the request.

11.2. We may suspend or close an account for a serious or repeated breach of these Terms, fraud, unlawful activity, or a material security risk. Where reasonably practicable, we will give notice and an opportunity to resolve a remediable breach. Immediate restrictions may be necessary to prevent harm or comply with law.

11.3. On permanent closure, access to the account ends and its remaining Axons are cancelled. Axons cannot be transferred or withdrawn before or after closure. However, cancellation of the balance does not remove any right to a refund or other remedy under Section 6 or applicable law.

11.4. Where an account is closed at your request or because of a breach, the general policy is that unused Axons are forfeited, subject to the protections in this paragraph. We will not automatically retain prepaid amounts where doing so would be unlawful or unfair. Any deduction for a breach must be legally justified and proportionate; it will not operate as an arbitrary penalty. Mandatory refunds remain payable.

11.5. Closure does not retrospectively remove a permission validly granted for an Output, but it does not legitimise infringing or unlawful use of that Output. Provisions about content rights, outstanding obligations, liability, and disputes continue to apply as relevant after closure.

12. Platform Intellectual Property

 

12.1. Rights in the Platform’s software, interface, branding, and website materials belong to Sintaxon or its licensors. You receive permission to access and use the Platform in accordance with these Terms, not ownership of those materials.

12.2. Except where permitted by law or expressly authorised, you must not copy, distribute, sell, or commercially exploit the Platform’s software, branding, or website materials. This section does not restrict the permitted use of your Inputs and Outputs under Sections 7 and 8.

13. Responsibility and Liability

 

13.1. We will provide the Services with reasonable care and skill. AI limitations described in these Terms do not excuse a failure to meet our legal obligations or the agreed description of the Services.

13.2. If you are a consumer, we are responsible for loss or damage that is a foreseeable result of our breach of these Terms or our failure to use reasonable care and skill. We are not responsible for losses caused solely by your unlawful use, unauthorised modifications, or failure to obtain rights that were your responsibility to obtain.

13.3. If you use the Services for business purposes, to the extent permitted by law, we are not liable for indirect or consequential losses, or for loss of profit, revenue, business opportunity, or anticipated savings arising from your use of the Services.

13.4. Nothing in these Terms excludes or limits liability for fraud, fraudulent misrepresentation, death or personal injury caused by negligence, or any other liability that cannot lawfully be excluded or limited. Your mandatory rights concerning digital content, Services, and personal data remain unaffected.

14. Complaints, Governing Law, and General Provisions

 

14.1. Please direct service complaints to techcrew@sintaxon.com and other formal enquiries to frequency@sintaxon.com. Describe the issue and the resolution you seek so that we can investigate. This complaints route does not prevent you from exercising legal rights or seeking other available remedies.

14.2. These Terms are governed by the laws of England and Wales. If you are a consumer, this choice does not deprive you of mandatory protections under the law of your country of habitual residence where those protections apply.

14.3. Business disputes are subject to the exclusive jurisdiction of the courts of England and Wales. Consumers may bring proceedings in any court available to them under applicable mandatory law, including their local courts where the law provides that right.

14.4. If a provision is found unenforceable, the remaining provisions continue to apply to the extent legally possible. A delay in enforcing a provision is not a waiver of the right to enforce it later.

14.5. These Terms and the transaction-specific information provided before a purchase or request govern the relevant Services. They do not exclude binding pre-contract statements or representations where the law prevents their exclusion.