Terms of Service

Effective date: September 20, 2026
These Terms of Service ("Terms") govern your access to and use of Meylo, including our mobile applications, websites, AI video-generation tools, AI character and chat features, community features, and related services (collectively, the "Services") provided by Heartflow ("Heartflow," "Meylo," "we," "us," or "our").

By accessing or using the Services, you agree to these Terms and our Privacy Policy. If you do not agree, do not use the Services.

1. Eligibility

You must be at least 18 years old to use Meylo. By using the Services, you represent and warrant that you are at least 18 and legally capable of entering into a binding agreement.

You may not use the Services if doing so would violate applicable law, if we have previously suspended or terminated your account for violations, or if you are otherwise prohibited from using the Services.

2. Accounts

You are responsible for maintaining the confidentiality and security of your account credentials and for activity that occurs under your account. You must provide accurate information and promptly update information that becomes inaccurate.

You may not sell, transfer, rent, or share your account in a manner that creates security, fraud, or abuse risks. Notify us promptly at support@ravalive.com if you believe your account has been compromised.

3. The Meylo Services

Meylo may provide AI-powered features that allow users to generate or edit videos, images, text, audio, characters, stories, or other media; interact with AI characters; publish or discover user-generated or AI-generated content; communicate with other users; and purchase or use subscriptions, Credits, or other digital features.

Features may change, be added, be removed, become unavailable, or vary by device, account, region, subscription plan, or applicable law.

4. Artificial Intelligence

Meylo uses generative artificial intelligence. AI-generated content may be inaccurate, incomplete, offensive, unexpected, fictional, or unsuitable for your intended purpose. AI characters are not human beings, and their statements should not be treated as professional, medical, legal, financial, or other expert advice.

You are responsible for evaluating AI outputs before relying on, publishing, distributing, or otherwise using them. You must not represent AI-generated content as authentic evidence of a real event or real person's conduct where doing so would be misleading or unlawful.

We do not guarantee that outputs will be unique. Other users may receive similar or identical outputs, and third-party rights may affect whether particular content can be lawfully used.

5. Your Content

"User Content" means prompts, uploads, images, videos, audio, text, characters, messages, posts, profile content, comments, and other material you submit to or create through the Services.

As between you and Heartflow, you retain any rights you have in your User Content, subject to these Terms and applicable law. You are solely responsible for ensuring that you have all rights, permissions, licenses, and consents necessary to upload, generate, publish, share, or otherwise use your User Content.

To operate the Services, you grant Heartflow a worldwide, non-exclusive, royalty-free, sublicensable, transferable license to host, store, reproduce, process, adapt, display, communicate, distribute, and otherwise use your User Content as reasonably necessary to provide, operate, secure, moderate, support, and improve the Services. For content you choose to make public, this license also includes the rights reasonably necessary to display, recommend, distribute, and promote that public content within or in connection with the Services.

This license ends when your content is deleted from our active systems, except to the extent continued retention or processing is reasonably required for backups, legal compliance, safety, dispute resolution, enforcement, or where content has been shared or stored by other users.

6. AI-Generated Outputs

Subject to these Terms, applicable law, third-party rights, and any restrictions associated with a particular model or feature, Heartflow does not claim ownership of rights you may have in outputs generated specifically for you through the Services.

You acknowledge that copyright and other intellectual-property laws relating to AI-generated content may vary by jurisdiction and may change over time. Heartflow does not guarantee that any output is eligible for copyright or other intellectual-property protection.

7. Public Content, Characters, and Community Features

If you publish content, create a public character, post comments, or otherwise make material visible to other users, you understand that other users may view, interact with, save, share, remix, report, or otherwise engage with that content as permitted by the Services.

You must not publish private, confidential, or personal information belonging to another person without authorization.

8. Prohibited Conduct and Content

You may not use the Services to create, upload, request, distribute, promote, or facilitate content or activity that:

We may apply additional restrictions to public, discoverable, or community content. Content that may be lawful in a private context may still be prohibited from public distribution on Meylo.

9. Safety, Moderation, and Enforcement

We may use automated systems and human review to detect, restrict, remove, or investigate content or conduct that may violate these Terms, applicable law, or our safety standards.

We may limit distribution, disable features, remove content, suspend or terminate accounts, preserve relevant records, or report matters to competent authorities when we reasonably believe such action is appropriate for safety, security, legal compliance, or enforcement.

We are not obligated to monitor all content and cannot guarantee that objectionable or harmful content will never appear.

10. Subscriptions, Credits, and Purchases

Meylo may offer subscriptions, Credits, virtual items, or other paid features. Prices, included benefits, billing periods, renewal terms, and applicable taxes will be shown before purchase.

If you purchase through Apple App Store, Google Play, or another third-party platform, your payment, billing, cancellation, and refund rights may also be governed by that platform's terms.

Unless otherwise required by law or the applicable payment platform, digital Credits and virtual items:

11. Auto-Renewing Subscriptions

If you purchase an auto-renewing subscription, it will renew at the frequency and price disclosed at purchase unless canceled before the renewal date. You can manage or cancel app-store subscriptions through your Apple App Store or Google Play account settings, as applicable.

Deleting the Meylo app or deleting your Meylo account does not necessarily cancel a subscription billed by an app store. You are responsible for canceling through the relevant billing provider.

12. Refunds

Refund eligibility depends on applicable law, the method of purchase, and the policies of the payment provider or app store. For purchases billed by Apple or Google, refund requests may need to be submitted directly to the applicable store.

Nothing in these Terms limits any mandatory refund, withdrawal, or consumer rights you may have under applicable law.

13. Intellectual Property of the Services

The Services, including software, interfaces, branding, designs, logos, text, graphics, compilation, and other materials provided by Heartflow, are owned by or licensed to Heartflow and are protected by applicable intellectual-property laws.

Except for rights expressly granted in these Terms, no license or right is granted to you in Heartflow's intellectual property.

14. Copyright and Rights Complaints

If you believe content on Meylo infringes your copyright, trademark, publicity right, privacy right, or other legal right, contact us at support@ravalive.com with sufficient information to identify the content, explain your claim, and allow us to contact you.

We may remove or restrict allegedly infringing content and may suspend repeat infringers where appropriate.

15. Third-Party Services

The Services may integrate with or link to third-party services, including AI providers, payment providers, app stores, analytics services, social platforms, and websites. Heartflow is not responsible for third-party services, content, or practices, and your use of them may be governed by separate terms and privacy policies.

16. Privacy

Our collection and use of personal information are described in our Privacy Policy. By using the Services, you acknowledge our Privacy Policy.

17. Service Availability and Changes

We may modify, update, suspend, discontinue, restrict, or replace any part of the Services. We do not guarantee that the Services, any particular AI model, generation feature, character, content item, subscription benefit, or other functionality will always be available.

We may impose technical or usage limits to protect performance, security, safety, legal compliance, or fair access.

18. Beta and Experimental Features

Some features may be designated beta, experimental, preview, or early access. Such features may be less reliable, change without notice, or be discontinued. You use them at your own risk.

19. Disclaimer of Warranties

To the maximum extent permitted by law, the Services are provided "as is" and "as available." Heartflow disclaims warranties of merchantability, fitness for a particular purpose, non-infringement, accuracy, availability, reliability, and uninterrupted or error-free operation.

We do not warrant that AI outputs will be accurate, unique, lawful for every intended use, free from third-party claims, or suitable for any particular purpose.

20. Limitation of Liability

To the maximum extent permitted by applicable law, Heartflow and its affiliates, officers, employees, agents, licensors, and service providers will not be liable for indirect, incidental, special, consequential, exemplary, or punitive damages, or for loss of profits, revenue, data, goodwill, business opportunity, or other intangible losses arising from or related to the Services.

Where liability cannot lawfully be excluded, it will be limited to the extent permitted by applicable law. Nothing in these Terms excludes liability that cannot be excluded or limited under applicable law.

21. Indemnity

To the extent permitted by law, you agree to indemnify and hold harmless Heartflow and its affiliates, officers, employees, and agents from claims, liabilities, damages, losses, and expenses arising from your unlawful use of the Services, your User Content, or your material breach of these Terms or third-party rights.

22. Suspension and Termination

You may stop using the Services at any time. You may also delete your account through available account controls where supported.

We may suspend, restrict, or terminate access where we reasonably believe you have violated these Terms, created risk or harm, engaged in fraud or abuse, or where suspension is required for legal, security, or operational reasons.

Sections that by their nature should survive termination will continue to apply, including provisions relating to ownership, licenses already granted where legally necessary, disclaimers, limitations of liability, dispute provisions, and enforcement rights.

23. Governing Law and Consumer Rights

These Terms are governed by the laws applicable to Heartflow's provision of the Services, without limiting any mandatory consumer rights that apply to you under the laws of your country or region.

If a dispute arises, you and Heartflow agree to first attempt to resolve it informally by contacting support@ravalive.com. Nothing in these Terms prevents either party from seeking relief from a competent court or authority where required or permitted by applicable law.

24. App Store Terms

If you download Meylo from Apple App Store or Google Play, you acknowledge that the applicable store provider is not responsible for Meylo's content, maintenance, support, warranties, or claims relating to the Services except to the extent required by its own terms or applicable law. Your use of Meylo must also comply with the applicable store's rules.

25. Changes to These Terms

We may update these Terms from time to time. If we make material changes, we may provide notice through the Services or by other appropriate means. Your continued use of the Services after updated Terms become effective constitutes acceptance of the revised Terms to the extent permitted by law.

26. General Terms

If any provision of these Terms is found unenforceable, the remaining provisions will remain in effect. Our failure to enforce a provision is not a waiver of our right to do so later. You may not assign these Terms without our consent, but we may assign them in connection with a corporate transaction or restructuring, subject to applicable law.

27. Contact Us

Questions about these Terms may be sent to:

Heartflow
Email: support@ravalive.com