Terms of Service

Last updated: November 13, 2026

Accepting these terms

By using the kk desktop app, the official gateway service or this website you agree to these terms and the Privacy Policy. If you do not agree, please do not use them. The service is provided by Yangg, an independent developer (“we”).

The service

  • kk desktop app: real-time speech transcription, bilingual captions, class Q&A, note generation and more. The app itself is free.
  • Custom API: enter your own recognition and LLM provider keys and use every feature free, with no time limit. You pay those providers directly, kk adds no markup, and the providers’ own terms apply.
  • kk Pass (official service): if you prefer not to configure anything, you can buy hours and our gateway calls the recognition and LLM services for you.

Accounts

  • You sign in with an emailed code and may optionally link a Google account. Keep your email and Google accounts secure.
  • Each account can hold up to 5 sign-in sessions at once, and only one device can record at a time. You can remove devices on the app’s account page.
  • Provide a working email address. You are responsible for activity under your account.

kk Pass and payment

  • kk Pass is sold as monthly passes valid for 30 days that do not renew automatically. Current prices: Lite $5.99 / 16 hours, Plus $12.99 / 38 hours, Premium $29.99 / 92 hours; if you run short, a top-up pack is $2.99 / 8 hours. All three passes have identical features and differ only in hours. The checkout page shows the final price; we may change prices, which does not affect passes you already bought.
  • Hours are deducted as you use them and the app always shows what is left. Hours not used within the validity period expire.
  • Amounts in RMB are estimates at the day’s exchange rate; the payment page is authoritative.
  • New-user trial: after creating an account you can claim 30 free minutes, valid for 90 days after claiming; no invitation code is needed. The details shown in the app apply.
  • Payment provider: orders are processed by Paddle.com as the Merchant of Record. Paddle collects payment, issues receipts and handles applicable sales taxes, and its buyer terms also apply to your purchase.
  • For refunds see the Refund Policy.

Acceptable use

You must not:

  • bypass, tamper with or deceive billing, quotas or rate limits, or resell or share the official service with others;
  • attack, probe or disrupt our servers or third-party providers;
  • use kk for anything unlawful or that infringes others’ rights;
  • record or transcribe other people’s voices without the right to do so. You are responsible for confirming that you may record and transcribe the class you attend, and for following your school’s and instructor’s rules and local law.

If you break these rules we may limit or end your use.

Your content

Your audio, captions, notes and course materials belong to you. We process them only as needed to provide the service (for example forwarding text to LLM providers to produce translations), as described in the Privacy Policy.

Transcripts and translations can be wrong

Speech recognition, translation, key points and Q&A are generated by AI and may contain errors, especially with names, terminology, strong accents and noisy rooms. Do not rely on them as the only basis for exams, grades, or legal, medical or other important decisions, and check any cited slide pages yourself.

Third-party services

The service depends on third-party speech, LLM, email and network providers. If they fail, rate-limit or change their terms, the service may be interrupted or change. We will try to restore it but cannot guarantee it.

Availability and changes

The service is provided “as is” without a guarantee that it will be uninterrupted or error-free. We may update, adjust or discontinue features; before discontinuing a paid service we will try to give notice and handle any remaining hours fairly.

Termination

You may stop using kk at any time and request deletion of your account (see the Privacy Policy). If you seriously or repeatedly breach these terms, we may suspend or end your account. Provisions that by their nature should survive termination (such as limits of liability) do so.

Limitation of liability

To the extent permitted by law, we are not liable for indirect, incidental or consequential losses arising from use of or inability to use the service, and our total liability is limited to the amount you actually paid for kk Pass in the 12 months before the event. Nothing here excludes liability that cannot be excluded by law.

Governing law and disputes

These terms are governed by the laws of the People’s Republic of China, excluding its conflict-of-laws rules. Any dispute arising from these terms or the service will first be resolved through good-faith negotiation; failing that, it will be submitted to a competent court at the operator’s place of residence. This does not affect any mandatory consumer rights under the laws of your place of residence.

Changes to these terms

We may revise these terms and will update this page and the date at the top. If you keep using the service after a material change takes effect, you accept it.

Contact

Email: support@kktranslate.com.