Terms of Use

The agreement between you and waifun

Last updated: 6 October 2026  ·  Effective: 6 October 2026

1. Acceptance of these terms

These terms form a binding agreement between you and the operator of waifun. By signing up, signing in, or otherwise using the service you accept them.

If you do not accept these terms, do not use the service. If you use the service on behalf of an organisation, you confirm you are authorised to bind that organisation.

2. What the service is

waifun lets you hold text conversations with AI-generated characters. Depending on your plan, the service also offers voice replies, additional characters and higher message limits.

The service is provided for entertainment and personal conversation. It is not a substitute for professional advice of any kind. Not medical, legal, financial, psychological or otherwise.

3. Important notice about AI characters

The characters are fictional personas produced by a language model. This matters, so please read it carefully:

• A character is not a real person. Character names, biographies and personalities are invented.
• A character's knowledge is generated, not researched. It can be wrong.
• A character cannot take action in the world. It cannot book anything, send anything, or make any commitment on your behalf.
• A character may say things that sound caring or convincing and are still mistaken. Warmth is not accuracy.
• Character behaviour can change. Model updates may alter how a character responds.

4. Eligibility

You may not use waifun if you are barred from receiving our services under applicable law, including sanctions and export control restrictions. If we establish that an account was created by someone who is barred, we will delete it.

5. Creating an account

You sign in with Google, with Apple, or with a one-time code sent to your email address. One person may hold one account.

Disposable and temporary email addresses may be refused at sign-up. Creating additional accounts, in bulk or otherwise, to work around message limits or to disrupt the service is prohibited and may result in permanent suspension of all associated accounts.

You are responsible for activity that happens under your account. Keep access to your email account secure, since anyone who can receive your verification codes can sign in as you.

6. Account security and verification

We use one-time verification codes rather than passwords. Codes are valid for a limited time and can only be used a limited number of times.

Attempting to guess verification codes, bypass rate limits, create accounts in bulk, or automate sign-up is prohibited and may result in permanent suspension.

7. Paid plans

waifun offers a free plan with a daily message limit, and paid plans that increase that limit and unlock additional characters and features.

Plan names, limits and features are shown in the app before you purchase. We may change pricing or plan contents. If a change materially reduces what you paid for, you may cancel and receive a pro-rata refund for the unused period.

Daily message limits reset on a rolling 24-hour basis and are tied to your account, not to your device.

8. Payment terms

Payments are taken and processed by Stripe, a third-party payment processor, on a hosted checkout page. We never receive or store your full card number; we receive only a confirmation that a payment succeeded.

• All prices are shown in US dollars unless the app displays another currency for your location.
• Monthly plans renew automatically each month. Yearly plans renew automatically each year.
• You can cancel renewal at any time from your account. Access continues to the end of the period you have already paid for.
• Subscriptions are for your own use and are non-transferable.
• Prices may change. We will give you reasonable notice before a renewal at a new price.
• Refunds are handled under our refund policy and, where applicable, under the consumer law of your country. Contact us and we will resolve it.

If payment fails and is not resolved, the plan may be downgraded to the free plan. We will try to notify you before doing so.

9. Acceptable use

You agree not to use waifun to:

• Produce, request or facilitate sexually explicit content.
• Harass, threaten, defame, stalk or impersonate anyone.
• Promote or facilitate sexual content involving minors, non-consensual sexual content, or the sexual exploitation of anyone.
• Distribute content that is illegal where you are, or that infringes someone else's rights.
• Violate anyone's privacy, or share personal data that does not belong to you.
• Attempt to gain unauthorised access to the service, its infrastructure, or any other user's account.
• Probe, scan or test the vulnerability of the service without our written permission, or interfere with its normal operation.
• Use automated means, bots, scrapers or scripts to extract content, characters, models or data from waifun.
• Resell, redistribute or provide access to waifun to anyone else.
• Use waifun to build or train any other product, dataset or model.
• Act in a way that endangers a character, that encourages self-harm, or that glorifies violence.
• Upload anything unlawful, or material you do not have the right to upload.

10. Content rules

You keep ownership of what you write. You grant us a limited licence to host, process and display your messages for the purpose of operating the service. For example, generating replies and showing you your own history. That licence ends when you delete the message or your account.

Replies produced by a character are generated by a third-party model and are provided as a result you may use as you wish.

We may remove content or suspend an account where we reasonably believe these terms or the law have been breached, or where required by law. Where we remove content, we will tell you why unless we are legally prevented from doing so.

11. Intellectual property

waifun, including its name, software, visual design, character names, character designs, personalities and all other content and branding, is owned by us or our licensors. We grant you a limited, revocable, non-exclusive, non-transferable licence to use the service as intended. Nothing else is granted.

These terms do not transfer any right in the waifun name or branding. Do not use them in your own product, company name or domain without written permission.

12. Feedback

If you send us feedback or suggestions, you allow us to use it without restriction and without obligation to you.

13. Third-party services and links

waifun may link to or integrate with third-party services, including sign-in providers and payment processing. Those services are operated by others under their own terms and privacy policies. We are not responsible for their content, availability or conduct.

14. Disclaimer of warranties

The service is provided "as is" and "as available". To the fullest extent permitted by law, we disclaim all warranties, express or implied, including any implied warranties of merchantability, fitness for a particular purpose, non-infringement and quality.

We do not warrant that the service will be uninterrupted or error-free, or that any output from an AI character will be accurate, safe or suitable for any purpose.

Nothing in these terms excludes liability that cannot lawfully be excluded.

15. Limitation of liability

To the fullest extent permitted by law, our aggregate liability arising out of or relating to the service is limited to the greater of the amount you paid us in the 12 months before the event giving rise to the claim, or 100 USD.

We are not liable for indirect or consequential loss, loss of profit, loss of data, or loss of goodwill. We are not liable for anything arising from your reliance on what an AI character said.

If you are a consumer, nothing in these terms limits rights you have under the mandatory consumer law of your country.

16. Indemnity

To the extent permitted by law, you agree to indemnify and hold us harmless from claims, losses and expenses arising from your breach of these terms, your misuse of the service, or your violation of someone else's rights.

17. Suspension and termination

You may delete your account at any time from inside the app. That also deletes your conversations.

We may suspend or terminate your access if you breach these terms, if we are required to do so by law, or if we detect abuse that threatens the service or other users. Where we terminate without your breach, we will refund any prepaid unused period.

18. Changes to these terms

We may revise these terms. The date at the top shows the current version. Material changes are announced inside the app before they take effect. If you do not accept the revised terms, you may stop using the service and delete your account.

19. Governing law and disputes

These terms are governed by the laws applicable at our place of establishment, without regard to conflict-of-law rules. Mandatory consumer protections of your country of residence still apply to you.

If you have a problem, contact us first. We would much rather fix it than argue about it. If we cannot resolve it, you may bring a claim in the competent courts, or use the dispute resolution process available where you live.