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Terms of Service

Last updated: 27 October 2026

These Terms govern your use of Heartongue, including the website at heartongue.com and the app at app.heartongue.com (together, the "Service"). The Service is operated by Heartongue ("Heartongue", "we", "us"). You can reach us at team@heartongue.com.

By creating an account or using the Service you agree to these Terms. If you use the Service for a church, company or other organization, you agree on its behalf and confirm you are authorized to do so; "you" then means both you and that organization.

1. Who can use Heartongue

  • You must be at least 18 years old to create an account. Accounts are for the people who set up and run broadcasts.
  • Listeners join a broadcast through a link or QR code and do not need an account. The organization running the broadcast is responsible for its audience (see section 7).

2. The Service

Heartongue captures a speaker's audio from a browser, transcribes it, translates it with machine translation and speech synthesis, and delivers voice and captions to listeners' browsers in near real time. Features, languages and limits are described at https://heartongue.com/guide and may change as the Service improves.

3. Accounts and organizations

  • Keep your login details secure and tell us at once if you suspect unauthorized use.
  • An organization has owners, admins and members. Owners and admins control the organization's rooms, members and billing, and are responsible for the people they invite.
  • Give us accurate information and keep it up to date.

4. Plans, language-hours and the free trial

  • Usage is measured in language-hours: one hour of broadcasting translated into one language that had at least one listener, counted per minute. The source language and languages without listeners are not counted.
  • The free trial gives 2 language-hours to the first organization created by a user with a verified email address. One trial per person; creating accounts or organizations to obtain more trials is not allowed.
  • Pay-as-you-go hours never expire. Monthly plan hours are available for the billing period in which they are granted, do not roll over, and are used before purchased hours.
  • A broadcast in progress is not stopped for lack of hours. Your balance may become negative; the negative amount is deducted from your next purchase or renewal, and new broadcasts cannot start while the balance is zero or below.
  • Plan limits (such as the number of rooms and saved transcripts) are shown at https://heartongue.com/pricing.

5. Payment through Paddle

Our order process is conducted by our online reseller Paddle.com. Paddle.com is the Merchant of Record for all our orders. Paddle provides all customer service inquiries about payments, handles invoices, sales tax and VAT, and handles returns. Your purchase is also subject to Paddle's Buyer Terms: https://www.paddle.com/legal/checkout-buyer-terms.

  • Subscriptions renew automatically each month until cancelled. You can cancel at any time from the billing page or the Paddle customer portal; the plan stays active until the end of the paid period.
  • Upgrades start immediately and are charged at the new plan's full price; downgrades take effect at the next renewal.
  • We may change prices with at least 30 days' notice for existing subscriptions.

Refunds

All purchases and subscription payments are final and non-refundable, including unused hours and unused monthly plan hours. This does not affect any right to cancel or withdraw that the law of your country gives you as a consumer (for example the 14-day right of withdrawal in the EU, EEA and UK, which ends once you start using the Service with your consent); such requests are handled by Paddle under its refund policy (https://www.paddle.com/legal/refund-policy). Cancelling a subscription stops future renewals; the plan stays active until the end of the paid period.

6. Your content

  • "Customer Content" means the audio you broadcast and the text produced from it (transcripts, translations, captions), plus glossary entries and room settings.
  • You keep all rights to your Customer Content. You give us a limited license to process it only to provide, secure and support the Service for you.
  • Audio is processed in real time and not stored. Transcripts are stored only if your organization turns on saved transcripts, and are deleted after 90 days or earlier when you delete them.
  • We do not use your Customer Content to train machine-learning models, and our AI providers are contractually not allowed to either.

7. Your responsibilities

You are responsible for how your organization uses the Service, including that:

  • you have the right to broadcast the content (for example sermons, readings, songs and recordings) and to have it transcribed and translated;
  • you tell speakers and the audience that live AI interpretation is in use, and obtain any consent required by law where you are;
  • you decide who may access your broadcasts, including minors, and comply with the laws that apply to your audience; the Service is not designed or marketed for children, and you must not use it in a way that is directed at children;
  • you do not broadcast speech of children where the law requires parental consent unless you have it.

8. Acceptable use

Do not use the Service to:

  • break the law, infringe others' rights, or broadcast content you are not allowed to share;
  • record or interpret people covertly, harass, threaten or promote hatred or violence;
  • distribute malware, probe or overload our systems, bypass usage limits, PIN protection or billing, or scrape the Service;
  • resell or sublicense the Service without our written permission, or reverse engineer it except where the law allows;
  • generate or broadcast content that breaks the usage policies of the AI services we rely on (for example content that is sexually explicit, promotes violence or harms minors).

9. Machine interpretation and accuracy

The Service uses automated speech recognition, machine translation and synthesized voices. Output can be incomplete, delayed or wrong, including names, numbers, quotations and meaning. It is not a certified interpreter and must not be relied on for legal, medical, financial, emergency, safety-critical or other high-stakes communication. Listeners should be told that the interpretation is automatic.

10. Third-party services

The Service relies on third-party providers for hosting, AI processing, email and payments (described in our Privacy Policy). Their availability can affect ours. Signing in with Google is also subject to Google's terms.

11. Availability and changes

We work to keep the Service available and reliable, but we do not guarantee it will be uninterrupted or error-free. We may change, add or remove features. If we make a change that materially reduces what a paid plan includes, we will tell you in advance and you may cancel.

12. Suspension and termination

  • You may stop using the Service and delete your organization's data at any time by contacting us.
  • We may suspend or close an account that breaks these Terms, puts the Service or others at risk, or is used fraudulently. Where reasonable we will warn you first.
  • When an account is closed we delete its data as described in the Privacy Policy. Sections 6, 9, 13, 14 and 15 continue to apply.

13. Disclaimers and limitation of liability

To the fullest extent permitted by law:

  • the Service is provided "as is" and "as available", without warranties of any kind, express or implied;
  • we are not liable for indirect, incidental, special, consequential or punitive damages, or for lost profits, data or goodwill;
  • our total liability for any claim relating to the Service is limited to the amount you paid for the Service in the 12 months before the claim arose.

Nothing in these Terms limits liability that cannot be limited by law, or your statutory rights as a consumer.

14. Indemnity

You agree to compensate us for claims, losses and costs arising from your Customer Content or your breach of these Terms, except to the extent caused by us.

15. Governing law and disputes

These Terms are governed by the laws of the Socialist Republic of Vietnam. Before starting any formal proceedings, please contact us so we can try to resolve the issue. If you are a consumer, you also keep the protection of the mandatory laws of the country where you live.

16. Changes to these Terms

We may update these Terms. We will post the new version here with a new date and, for material changes, notify account owners by email at least 14 days before they take effect. Continuing to use the Service after that means you accept the changes.

17. Contact

Heartongue — team@heartongue.com

Plain-text version for AI agents and tools: /terms.md · /llms.txt