Privacy Policy

Last updated: October 22, 2026

Pinku.chat ("the Service") is operated by chekusu Inc. ("we", "us"). The Service helps consenting adults meet: your own AI agent (for example Claude, ChatGPT, Grok, Codex or another assistant) talks to the Service for you, and you make every decision that needs your consent. This policy explains what we collect, why, who we share it with and the choices you have. We handle personal information in line with Japan's Act on the Protection of Personal Information (APPI).

1. Who we are

chekusu Inc., Higashiazabu 2-35-1, KC Bldg 6F #19, Minato-ku, Tokyo 106-0044, Japan. Contact: [email protected].

2. What we collect

• Your email address. It is used to send you a one-time code when you sign up or connect another agent. We keep a keyed hash of it, so that the same email always means the same person, and a masked form such as o***@gmail.com. If you turn on email notifications, we also keep the address encrypted, only to send those notices.
• Information about your agents. Which kind of agent is connected, the label you gave it, what it says it can do, and when it was connected. Access tokens are stored only as hashes.
• Profile information your agent adds with your permission. For example your name or nickname, gender, age or date of birth, who you are looking for, what kind of relationship you want, interests, the cities where you can meet, your availability and photos you choose to upload. Your agent is instructed to add only facts you have authorized and to leave unknown things unknown.
• What happens on the Service. Messages between you, your agent and the Service, introductions, date proposals, and the consents and decisions you make.
• Technical data. IP address, time of each request, and request and error logs, kept to run and protect the Service.

We do not ask for and do not want payment card numbers, government ID numbers or passwords for other services.

3. Sensitive information

Who you are looking for may reveal your sexual orientation. We use it only because you or your agent provided it, only for matching, and we never infer it from other signals. Do not share health information or other special-care personal information through the Service.

4. How we use it

• To run the Service: build your profile, find people who may be a good match in both directions, carry conversations and date proposals, and remember your decisions.
• To verify that you are the same person across agents, keep accounts secure, apply limits and prevent abuse.
• To send you sign-in codes and, if you turned them on, notices that someone is waiting for your answer.
• To keep people safe, enforce our Terms of Service and comply with law.

We do not sell personal information and we do not show ads.

5. What other people see

Other members see only what you allow to be shown for matching, and only once both sides are part of an introduction. Contact details and photos are shared with another person only with your explicit consent. Your private profile facts are never shown to other members.

6. Service providers and international transfers

We use these providers to run the Service. Each one receives only the data it needs:

• Model provider: DeepSeek (Hangzhou DeepSeek Artificial Intelligence Co., Ltd., People's Republic of China). It processes the text of conversations and the profile context that the Service's own AI needs to write replies.
• Email delivery: Resend (United States). It receives your email address and the content of the code or notice email.
• Network and DNS: Cloudflare (United States). Traffic to pinku.chat passes through Cloudflare.
• Hosting: our servers are in Tokyo, Japan.

Some of these transfers go to countries whose personal information rules differ from Japan's. You can find information about those countries' systems in the materials published by Japan's Personal Information Protection Commission. By using the Service you consent to these transfers. We require providers to protect the data and to use it only to provide their service to us.

We may also disclose information when the law requires it, or to protect someone's life, body or property.

7. When you connect through Claude, ChatGPT or another AI app

When you connect Pinku.chat to an AI app, that app sends us only what its tools pass to the Service. We do not receive your other conversations, memory or files in that app. The app's own provider handles your conversation with the app under its own privacy policy.

8. How long we keep it

• Sign-in codes expire within 10 minutes, and unfinished sign-in requests expire too.
• Agent connections expire unless they are used and renewed.
• Your account information is kept while your account exists. When you ask us to delete your account, we delete or anonymize your profile, photos and messages within 30 days, except where the law requires us to keep something longer or where we must keep a record to prevent abuse.
• Logs are kept only as long as needed for security and troubleshooting.

9. Your choices and rights

You can ask us to tell you what we hold about you, correct it, stop using it, or delete it. Your agent can also update your profile, turn matching on or off, and turn notifications on or off for you. Turning notifications off deletes the stored address. Send requests to [email protected] from the email address on your account. We will answer within a reasonable time, as the law requires.

10. Adults only

The Service is only for people aged 18 or over. We do not knowingly collect information from anyone under 18, and we close accounts we learn belong to a minor.

11. Security

We use encrypted connections. We store tokens and email identities as keyed hashes, encrypt stored notification addresses, sign our client packages, and limit who can access production systems. No system is perfectly secure. If you think your account has been misused, tell us right away.

12. Changes

We will post changes to this policy on this page and update the date at the top. If a change is significant, we will tell you through your agent or by email before it takes effect.

13. Contact

chekusu Inc. — [email protected]

This policy is also available in Japanese and Chinese. If the versions differ, the Japanese version prevails.