In plain English: Be 13 or older. Write your own letters; don't write threats, illegal content, or anyone else's private information into them. You own what you write. We provide the tool; if something goes wrong, our liability is limited. Disputes go to Oklahoma. The longer version below has the legal details.
These Terms of Service ("Terms") govern your access to and use of KinLetter — including our mobile apps, website, and related services (collectively, the "Service"). By creating an account or using the Service, you agree to these Terms. If you don't agree, please don't use the Service.
1. Who can use KinLetter
You must be at least 13 years old — or the minimum age required to use online services in your country, if that age is higher — to use KinLetter. If you are between that age and the age of majority in your jurisdiction, you may only use KinLetter with the involvement of a parent or legal guardian who agrees to these Terms on your behalf. By using KinLetter you represent that you meet these requirements.
2. Your account
- You're responsible for keeping your password and access secure. Tell us right away if you suspect your account has been used without your permission.
- Your username is permanent and cannot be changed once set. Your display name can be updated at any time.
- You're responsible for all activity that happens under your account.
- One person, one account. Don't impersonate someone else or create accounts on behalf of people without their permission.
3. Acceptable use
KinLetter is for staying in touch with your inner circle. You agree not to:
- Use the Service to harass, threaten, defame, or stalk anyone.
- Post content that is illegal, infringes someone else's rights, sexually exploits minors, or incites violence.
- Use the Service to send spam, chain letters, or commercial solicitations.
- Attempt to access another user's account, content, or data without permission.
- Reverse engineer, decompile, scrape, or attempt to extract source code from the Service, except where this restriction is prohibited by law.
- Use automated tools (bots, scripts) to interact with the Service, except for accessibility tools used by you personally.
- Interfere with the Service, probe for vulnerabilities, or attempt to overwhelm our infrastructure.
- Use the Service in ways that violate applicable law in your jurisdiction.
We may suspend or terminate accounts that violate these rules.
4. Your content
You retain ownership of everything you write, speak, or upload to KinLetter ("Your Content"). You grant KinLetter a limited, worldwide, royalty-free license to host, store, transmit, display, and process Your Content for the sole purpose of operating the Service for you and delivering Your Content to the people you've invited to your inner circle. This license ends when you or we delete Your Content, except for any backups that roll off within 30 days as described in our Privacy Policy.
You are responsible for Your Content. You represent that you have the right to post it and that it does not violate these Terms or the rights of anyone else.
5. AI-generated content
KinLetter uses artificial intelligence to help shape your raw notes into a polished post, note, or letter, and to maintain a "life context" summary about you. Some things to understand:
- AI output is generated automatically and may contain inaccuracies, made-up details, or tone that doesn't match your intent. Review every AI-shaped draft before you publish it.
- You are the author of any content you publish, even if AI helped shape it. Your Content includes AI-shaped output after you publish it.
- The life context summary is generated from your published updates. You can edit, approve, or dismiss any draft before it's used.
- We do not guarantee that AI-generated output will be accurate, appropriate, or fit for any particular purpose.
6. Privacy
Our Privacy Policy explains how we collect and use your information. By using the Service, you agree to the practices described there.
7. Third-party services
KinLetter relies on third-party providers (Supabase, Render, OpenAI, Resend, Expo, Apple, Google) to operate. Their services are subject to their own terms. We are not responsible for outages, data handling, or actions taken by these providers, though we choose providers we believe are reputable.
8. Account suspension and termination
You can delete your account at any time from Profile → Settings → Delete Account inside the app, or by following the steps on our Account Deletion page.
We may suspend or terminate your access to the Service if we believe you have violated these Terms, if continued access poses a legal or security risk, or if we discontinue the Service. Where reasonable, we'll give you notice and an opportunity to address the issue.
9. Changes to the Service
KinLetter is an evolving product. We may add, change, or remove features. We'll try to give reasonable notice of material changes, but we don't guarantee that any feature will remain available.
10. Disclaimers
THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE," WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS, IMPLIED, OR STATUTORY, INCLUDING WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, AND ANY WARRANTIES ARISING OUT OF COURSE OF DEALING OR USAGE OF TRADE. KINLETTER DOES NOT WARRANT THAT THE SERVICE WILL BE UNINTERRUPTED, ERROR-FREE, SECURE, OR FREE FROM HARMFUL COMPONENTS, OR THAT AI-GENERATED OUTPUT WILL BE ACCURATE.
11. Limitation of liability
TO THE MAXIMUM EXTENT PERMITTED BY LAW, KINLETTER AND ITS OWNERS, EMPLOYEES, AND CONTRACTORS WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS, REVENUE, DATA, OR GOODWILL, ARISING FROM YOUR USE OF THE SERVICE, EVEN IF WE HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
OUR TOTAL LIABILITY FOR ANY CLAIM ARISING FROM OR RELATED TO THESE TERMS OR THE SERVICE WILL NOT EXCEED THE GREATER OF (A) THE AMOUNT YOU PAID US IN THE TWELVE MONTHS PRECEDING THE CLAIM, OR (B) ONE HUNDRED U.S. DOLLARS (USD $100).
Some jurisdictions don't allow certain limitations on liability, so some of the above may not apply to you. In those cases, our liability is limited to the maximum extent permitted by law.
12. Indemnification
You agree to defend, indemnify, and hold harmless KinLetter and its owners from any claims, damages, losses, or expenses (including reasonable attorneys' fees) arising from (i) Your Content, (ii) your use of the Service, or (iii) your violation of these Terms.
13. Governing law and disputes
These Terms are governed by the laws of the State of Oklahoma, USA, without regard to its conflict-of-laws principles. Any dispute arising from or related to these Terms or the Service will be resolved exclusively in the state or federal courts located in Oklahoma, and you consent to the personal jurisdiction of those courts.
Before filing a claim against us, you agree to try to resolve the dispute informally by emailing us at hello@kinletter.com. We'll try to do the same. If we can't resolve it within 60 days, either of us may pursue formal proceedings.
14. Changes to these Terms
We may update these Terms from time to time. If we make material changes, we'll notify you by updating the "Last updated" date at the top and, where appropriate, by email or in-app notification. Your continued use of the Service after changes take effect means you accept the new Terms.
15. Miscellaneous
- Entire agreement: These Terms and our Privacy Policy are the entire agreement between you and KinLetter regarding the Service.
- Severability: If any part of these Terms is found unenforceable, the rest remains in effect.
- No waiver: Our failure to enforce any provision is not a waiver of that provision.
- Assignment: You may not assign these Terms without our consent. We may assign these Terms in connection with a merger, acquisition, or sale of assets.
- Contact: hello@kinletter.com