AI SubtitleLab
뒤로

Terms of Service

마지막 업데이트: 2026년 10월 18일

Effective date: October 19, 2026 · Version 1.0

These Terms of Service ("Terms") are a legal agreement between you and Wang Yongfei, an individual / sole trader operating under the laws of the People's Republic of China ("Wang Yongfei", "we", "us", or "our"). These Terms govern the AI SubtitleLab service available at https://www.aisubtitlelab.com (the "Service").

1. Introduction & Acceptance of Terms

By creating an account, subscribing to a plan, purchasing a minute pack, or otherwise using the Service, you confirm that you: (a) are at least 18 years of age; (b) have read, understood, and agree to be bound by these Terms; (c) agree to our Privacy Policy at https://www.aisubtitlelab.com/en/privacy; and (d) are authorised to enter into this agreement for yourself or any organisation you represent.

If you do not agree to these Terms, you must not use the Service. Continued use after an update to these Terms constitutes acceptance of the revised Terms.

2. Service Description

2.1 What We Provide

AI SubtitleLab is a browser-based software-as-a-service platform for AI-assisted audio transcription, subtitle editing, subtitle translation, caption styling, media overlays, custom font uploads, and subtitle or video export. Video files are generally processed in your browser; the editor extracts an audio track and uploads that audio for transcription. The Service is delivered over the internet and does not include any desktop software.

2.2 Nature of the Service

The Service is a digital, intangible product. Access to paid features is granted after a confirmed payment. Because delivery is immediate, refund rights are limited as described in Section 7 and our Refund Policy at https://www.aisubtitlelab.com/en/refund.

2.3 Third-Party AI Providers

We use third-party providers to operate the Service, including AssemblyAI and Groq for speech recognition, DeepSeek for translation and content generation, and Waffo Pancake for payment processing. Service performance and availability may depend on these providers. We do not guarantee that any specific model, language, accent, format, or output quality will be available at all times.

3. Account Registration & Eligibility

3.1 Account Creation

You must create an account with accurate and complete information to access account features and paid functionality. You are responsible for maintaining the confidentiality of your login credentials and for all activity under your account.

3.2 Account Security

  • Notify us immediately at [email protected] if you suspect unauthorised access to your account.
  • Do not share your password, session, API access, or account credentials with any third party.
  • Keep your billing email address current so that we can send renewal, security, and billing notices.

3.3 Business Accounts

If you register on behalf of a company or organisation, you represent that you have authority to bind that entity to these Terms. You are responsible for ensuring that your use of the Service complies with your organisation's policies and applicable law.

4. Plans & Credits

4.1 Available Plans

We offer the following plans, subject to the pricing page and checkout at the time of purchase. Prices are in US dollars and exclude applicable taxes unless stated otherwise.

  • Free: 60 minutes of transcription per calendar month, a maximum video length of 10 minutes, video export with a watermark, and no subtitle-file export.
  • Pro Monthly: USD 9 per month, 600 minutes (10 hours) per monthly billing period, a maximum video length of 30 minutes, subtitle and video export up to 1080p, and no watermark.
  • Pro Yearly: USD 79 per year, 7,200 minutes (120 hours) per annual billing period, a maximum video length of 30 minutes, subtitle and video export up to 1080p, and no watermark.
  • Max Monthly: USD 19 per month, 1,800 minutes (30 hours) per monthly billing period, a maximum video length of 2 hours, subtitle and video export up to 4K, priority processing, and no watermark.
  • Max Yearly: USD 169 per year, 21,600 minutes (360 hours) per annual billing period, a maximum video length of 2 hours, subtitle and video export up to 4K, priority processing, and no watermark.
  • 300-Minute Pack: USD 5 as a one-time purchase for 300 additional transcription minutes, valid for 12 months from purchase. A pack adds minutes only; it does not by itself change your plan, remove a watermark, increase export resolution, or raise your per-video length limit.

4.2 Free Allowance

Free accounts receive 60 minutes per calendar month. The allowance is granted when first needed in that month and expires at the end of that calendar month. It does not roll over. Guest trials are subject to the daily and technical limits displayed in the Service, and guests cannot export subtitle files or video.

4.3 Credits and Expiry

Subscription minutes are granted for the current billing period and expire at the end of that period. Purchased pack minutes expire 12 months after purchase. For display and usage, we combine available minutes into a single balance; each grant keeps its own expiration date, and only unexpired grants count toward the available balance. Credits have no cash value, are non-transferable, and may not be sold or exchanged.

4.4 Plan Changes

We may modify plan features, quotas, or prices from time to time. Material changes will be notified in advance and will not affect a paid period that has already begun, except where required by law. Plan upgrades, downgrades, and renewals are processed through Waffo Pancake and may be subject to its checkout terms and proration rules.

5. Billing & Payment

5.1 Subscription Recurring Billing Authorisation

By subscribing to a paid plan, you expressly authorise us and Waffo Pancake to charge your selected payment method on a recurring basis for the applicable subscription fee until you cancel in accordance with Section 6. Your subscription renews automatically at the end of each billing period unless cancelled. We will send advance notice before the renewal of an annual subscription where required by law or where practical.

5.2 Credit Purchase Authorisation

Each minute-pack purchase is a one-time transaction. By completing the purchase, you authorise the charge shown at checkout. Waffo Pancake acts as the merchant of record and PCI-DSS-compliant payment provider for purchases. Waffo Pancake's buyer terms and privacy policy also apply to the payment transaction. We do not receive or store your full card number, CVV, or full bank account details.

5.3 No Auto Top-Up

We do not currently offer automatic top-up. If we introduce it in the future, it will require your separate authorisation and will be disclosed at checkout.

5.4 Taxes and Currency

Prices are exclusive of applicable taxes unless stated otherwise. Waffo Pancake may calculate and collect VAT, GST, sales tax, or similar taxes at checkout. Currency conversion, bank fees, and card-issuer fees are determined by your payment provider and are your responsibility.

5.5 Coupons and Promotions

Coupons and promotions are subject to the terms shown when they are issued. Unless stated otherwise, they apply to one order, cannot be combined, have no cash value, and may be withdrawn or refused in cases of fraud, abuse, or error.

6. Cancellation Policy

6.1 How to Cancel

You may cancel your subscription at any time from the Account page by selecting the subscription and choosing Cancel Subscription. You may also email [email protected] from your registered email address. Do not delete your account before cancelling an active subscription; if you need help, contact support and we will assist you.

6.2 Effect of Cancellation

  • Your subscription remains active until the end of the current billing period.
  • You will not be charged for subsequent billing periods after a successful cancellation.
  • Subscription minutes expire at the end of the paid period.
  • Separately purchased pack minutes remain available until their own expiry date, subject to your account remaining open.
  • We do not automatically provide a prorated refund for a partial billing period, except where required by law or expressly stated in Section 7.

7. Refund Policy

7.1 Subscription Refunds

Paid subscription fees are generally non-refundable after the applicable period has begun, except as stated below.

  • First-time subscriber guarantee: A first-time subscriber may request a full refund within 7 days of the initial charge if usage has not exceeded 10% of the minutes included in the initial billing period.
  • Duplicate or unauthorised charge: We will refund a verified duplicate, unauthorised, or incorrect charge.
  • Verified service failure: If the Service is unavailable for a continuous period of at least 72 hours due to a failure within our reasonable control, you may request a prorated credit or refund.
  • Statutory rights: If applicable law grants you a withdrawal or refund right, including a 14-day right in the EU, UK, or EEA, that right is preserved. By requesting immediate access to digital content, you acknowledge that the right may be lost once the content has been delivered or fully used, where the law permits.

7.2 Minute-Pack Refunds

You may request a full refund of an unused 300-minute pack within 7 days of purchase if no minutes from that pack have been used, as determined from our records. Once any minutes from a pack have been used, the pack is non-refundable, except for a verified duplicate or unauthorised charge or where required by law.

7.3 Non-Refundable Items

  • Fees for billing periods that have already been used, except as described in Section 7.1.
  • Minute packs that have been partially or fully used.
  • Accounts terminated for a material breach of these Terms or our Acceptable Use Policy.
  • Add-on services or third-party fees that have already been delivered.

7.4 How to Request a Refund

Email [email protected] within the applicable period with your account email, order number or transaction ID, and the reason for the request. We aim to acknowledge requests within 2 business days and to process eligible refunds within 5–10 business days. Approved refunds are returned to the original payment method. Your bank or card issuer may take additional time to post the refund.

8. Billing Disputes

If you believe there is an error in a charge, please contact us at [email protected] before disputing the charge with your bank or card issuer. We will investigate in good faith and aim to respond within 2 business days. We will resolve confirmed billing errors within 5 business days where practicable.

9. AI Output & Intellectual Property

9.1 Ownership of Outputs

Subject to these Terms, you own the transcripts, subtitles, translations, and other output generated from your inputs ("Outputs") to the extent permitted by law. You may use Outputs for any lawful purpose consistent with Section 10.

9.2 Input Licence

By submitting audio, video, text, fonts, images, or other content ("Inputs"), you grant us a limited, non-exclusive, worldwide licence to host, reproduce, process, transmit, and display the Inputs solely to provide the Service, comply with law, and protect the Service. We do not use your Inputs to train our own AI models without your explicit consent. You represent that you have all rights and consents necessary to submit the Inputs.

9.3 Third-Party AI Dependency

Our Service uses third-party AI models and infrastructure, including AssemblyAI, Groq, and DeepSeek. Outputs may be influenced by those providers' models and policies. We do not guarantee specific output quality and are not responsible for a third-party provider's independent acts or omissions beyond what applicable law requires.

9.4 Accuracy of AI Outputs

AI-generated content may be inaccurate, incomplete, or outdated. You are solely responsible for reviewing and verifying Outputs before publishing, relying on them, or using them in a professional, legal, medical, financial, or safety-critical context. Always obtain qualified professional advice where appropriate.

10. Acceptable Use Policy

10.1 Permitted Uses

You may use the Service only for lawful purposes and in accordance with these Terms. You must have the rights and consents needed to upload and process every audio file, video, voice, image, font, and other input you submit.

10.2 Prohibited Uses

You agree not to use the Service to:

  • Create or distribute content that is illegal, defamatory, harassing, fraudulent, or deceptive.
  • Create, distribute, or facilitate deepfake content or voice cloning that impersonates a real person or is intended to deceive viewers about its origin or authenticity.
  • Sexualise minors, violate child-protection laws, or exploit any person.
  • Produce malware, phishing content, spam, or cyberattack tools.
  • Infringe intellectual property, privacy, publicity, or other rights of any third party.
  • Circumvent usage limits, security features, access controls, or payment requirements.
  • Resell, sublicense, or provide access to the Service without our prior written approval.
  • Upload content that you do not have permission to process, including confidential information of another person or organisation.
  • Violate any applicable law, regulation, sanctions rule, or card-network rule.

10.3 AI-Specific Prohibitions

You further agree not to:

  • Use inputs, outputs, model responses, or derivatives to train, fine-tune, benchmark, distill, or develop an AI or machine-learning model that competes with the Service or our products.
  • Systematically scrape, extract, or harvest outputs at scale for purposes other than your own authorised use.
  • Represent AI-generated output as the work of a human professional where that representation could cause harm or deceive.
  • Use the Service to generate disinformation, fraudulent voice or video, or content intended to manipulate an election, financial market, or public safety.

11. Data, Privacy & Security

Your use of the Service is governed by our Privacy Policy at https://www.aisubtitlelab.com/en/privacy. Payment card data is processed exclusively by our PCI-DSS-compliant payment provider, Waffo Pancake, and is not stored on our servers. We retain account data while your account is active and delete or anonymise it within 30 days after account deletion, except for records we must retain for legal, tax, fraud-prevention, or dispute-resolution purposes. Audio uploads are ordinarily deleted after processing or failure, subject to short-lived backup copies described in the Privacy Policy.

12. Disclaimers & Limitation of Liability

12.1 Disclaimer of Warranties

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, NON-INFRINGEMENT, OR ACCURACY OF AI OUTPUTS. We do not warrant that the Service will be uninterrupted, error-free, secure, or available in every country.

12.2 AI-Generated Content Disclaimer

AI outputs may be inaccurate, incomplete, biased, or outdated. Do not rely on them for legal, medical, financial, tax, safety, or other professional advice. Always verify AI-generated content with a qualified professional before acting on it.

12.3 Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, WANG YONGFEI SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR FOR LOST PROFITS, REVENUE, DATA, GOODWILL, OR BUSINESS OPPORTUNITY. OUR TOTAL LIABILITY ARISING OUT OF OR RELATING TO THE SERVICE SHALL NOT EXCEED THE AMOUNT YOU PAID TO US IN THE 12 MONTHS PRECEDING THE EVENT GIVING RISE TO THE CLAIM. Nothing in these Terms excludes liability that cannot be excluded by law.

13. Term & Termination

These Terms remain effective while you use the Service. We may suspend or terminate your account if you materially breach these Terms, if we reasonably suspect fraud or abuse, if required by law, or if necessary to protect the Service or other users. If we terminate for reasons other than your material breach, we will provide a prorated refund for any unused prepaid period, to the extent required by law or as a matter of policy.

You may delete your account from the Profile page or by contacting [email protected]. Before deleting your account, cancel any active subscription from the Account page. We may retain limited records as described in the Privacy Policy.

14. Governing Law & Dispute Resolution

These Terms are governed by the laws of the People's Republic of China, without regard to conflict-of-law rules. Before starting formal proceedings, please contact us at [email protected] so that we can try to resolve the dispute informally. Subject to any mandatory consumer protections in your country of residence, disputes shall be submitted to the competent courts of the People's Republic of China.

15. General Provisions

We may update these Terms from time to time. Material changes will be notified by email or through the Service at least 15 days before the effective date, unless a shorter period is required by law. Continued use after the effective date constitutes acceptance. If any provision is found unenforceable, the remaining provisions continue in full effect. Our failure to enforce a provision is not a waiver. You may not assign these Terms without our written consent; we may assign them in connection with a merger, acquisition, or sale of assets. We are not liable for delays caused by events beyond our reasonable control.

Translations of these Terms are provided for convenience. If there is a conflict between a translation and the English version, the English version prevails to the extent permitted by applicable law.

16. Contact Information

For questions about these Terms, billing, refunds, privacy, security, or cancellation, contact:

By using the Service or agreeing at checkout, you acknowledge that you have read and agree to these Terms.

Last updated: October 19, 2026 · Wang Yongfei · https://www.aisubtitlelab.com

문의: [email protected]