Terms of Service

Version 2026-10-04 · Effective 2026-10-04

1. Accepting these terms

The Sen app (“Sen”, “the app”) is operated by Ly Minh Mai Company Limited (“we”, “us”). By creating an account or using Sen you agree to these Terms of Service and our Privacy Policy. If you do not agree, please do not use Sen.

2. Age

You must be 18 or older to use Sen. By signing up you confirm that you are. If we learn that an account belongs to someone under 18, we may delete it.

3. What Sen is, and what it is not

• Sen offers supportive conversation, breathing exercises, a mood journal, daily messages and relaxing sounds, for general emotional wellbeing.
• Sen does not diagnose, treat, prescribe for or monitor any condition, including mental health conditions. Sen is not a medical device.
• Using Sen does not create a doctor–patient, therapist–client or any other professional relationship.
• Sen does not replace advice, diagnosis or treatment from a doctor, psychologist or other health professional. Never delay or ignore seeking professional help because of something you read in Sen.

4. Not for emergencies

• No person watches conversations in real time, and Sen will not contact emergency services, your family or anyone else on your behalf.
• When it detects signs of danger, Sen may show helpline numbers. We try to check them, but we cannot guarantee they are accurate, in service or answered.
• If you are thinking of harming yourself or someone else, or you are in danger: call your local emergency number, go to the nearest hospital, or ask someone you trust to stay with you.

5. About AI-generated content

• Sen’s replies are generated automatically by third-party AI models. We do not review each reply before you see it.
• AI content may be inaccurate, incomplete, out of date, inconsistent, unsuitable for your situation, or upsetting, despite the safety measures we use.
• AI content is for general reference only and does not represent our views. Do not rely on it for decisions about health, medication, legal, financial, work or relationship matters. You are responsible for how you evaluate and use it.
• “What Sen remembers” is extracted by AI from what you said and may not be accurate. You can view, edit or delete it in the app.

6. Your responsibilities

When using Sen you agree:

• Not to use Sen for anything unlawful, harmful to others, harassing, fraudulent or to spread illegal content.
• Not to deliberately try to make the AI produce dangerous content, get around its safety measures, or attack, probe or copy our systems.
• To avoid sharing identifying or sensitive information about other people without their permission.
• To keep your device and sign-in account secure.

7. Accounts, suspension and termination

• You sign in with Apple or Google. You can delete your account at any time in the app (You → Manage account); your data is then handled as described in the Privacy Policy.
• We may limit usage, suspend or end your access if you breach these terms, to protect your safety or others’, or where the law requires.
• We may change, pause or discontinue all or part of Sen. If we shut Sen down entirely, we will try to give notice.

8. Sen Plus

• Sen Plus is an optional subscription, bought through the App Store, that adds more time to talk with Sen and some convenience features such as the sleep timer. The price, period and any free trial are shown before you buy.
• Payment is charged to your Apple account. The subscription renews automatically unless cancelled at least 24 hours before the end of the period. Manage or cancel it in your App Store account settings; after cancelling, Sen Plus stays active until the end of the period you paid for.
• Refunds are handled by Apple under Apple’s policies. Deleting your Sen account does not cancel the subscription.
• Crisis support, helplines and the basic exercises are always free and never depend on Sen Plus.
• We may change Sen Plus prices or benefits; price changes are notified in advance as Apple requires. The daily number of messages for each plan is shown in the app, and fair-use limits apply to prevent abuse.

9. Content and ownership

• What you enter (messages, notes) belongs to you. You allow us to process it as needed to provide Sen and keep it safe, as described in the Privacy Policy.
• The app, its design, the Sen character, messages we wrote and other assets belong to us or our licensors. Some sounds and quotations are in the public domain or used under their authors’ licences.

10. Third-party services

Sen relies on third parties (Apple/Google sign-in, AI model providers, hosting, and your phone’s own voices and speech recognition). Your use of those services is also subject to their terms. We are not responsible for helplines, websites or other outside services that Sen mentions.

11. Disclaimer of warranties

To the extent permitted by law, Sen is provided “as is” and “as available”. We do not warrant that Sen will be uninterrupted, error-free or completely secure, or that replies will be accurate, complete or suited to your needs. We do not promise any particular health or mood outcome from using Sen.

12. Limitation of liability

• To the fullest extent permitted by law, we are not liable for indirect, incidental, special or consequential loss, or for loss of data, profit or opportunity, arising from or related to your use of (or inability to use) Sen, including reliance on AI-generated content.
• To the extent permitted by law, our total liability for all claims relating to Sen will not exceed the amount you paid us for Sen in the 12 months before the claim.
• Nothing in these terms excludes or limits liability that cannot be excluded or limited by law, including your rights under consumer protection laws where you live (such as the Australian Consumer Law).

13. Indemnity

To the extent permitted by law, you agree to compensate us for reasonable losses and costs arising from your breach of these terms or unlawful use of Sen.

14. Changes to these terms

We may update these terms. For material changes we will let you know in the app before they take effect. If you keep using Sen after that, you accept the new terms.

15. Governing law and disputes

These terms are governed by the laws of Vietnam. We will first try to resolve any dispute by negotiation; failing that, it will go to a competent court in Vietnam. This does not take away any mandatory consumer rights you have under the law where you live.

16. Contact

Ly Minh Mai Company Limited · Email: hello@lyminhmai.com

These terms exist in Vietnamese and English; if they differ, the Vietnamese version prevails.