Privacy Policy

Last updated: September 28, 2026

Ayan Sengupta (trade name: 予約Lite) ("we" or "us") complies with the Act on the Protection of Personal Information and other applicable laws and regulations, and sets forth the following policy regarding the handling of personal information in the booking management service "予約Lite" (the "Service").

1. Structure of the Service and Our Role

The Service is a tool that enables businesses such as salons, trainers, and instructors (hereinafter "Stores") to accept bookings from their own customers (hereinafter "Bookers"). Information entered by Bookers is provided to the Store with which the booking is made, and the Store manages it under its own responsibility. We store and process this information on our system on behalf of the Stores.

2. Information We Collect

Information collected from Shops (account holders)

• Email address (used for login)
• Store name, booking page URL, business hours, menu and pricing, and the Store's contact phone number (optional)
• Access tokens for Google Calendar integration and the email address of the linked Google account (if the Store authorizes the integration)
• LINE Official Account channel information (if configured by the store)
• Payment information for paid plans (held by our payment processor, Stripe; we do not store card numbers)

Information collected from customers making bookings

• Name and phone number
• Reserved menu item, date and time
• LINE user ID and display name (if the reservation was made through the store's LINE Official Account)
• IP address at the time of reservation (converted to an irreversible format before storage to prevent fraudulent bulk reservations)

3. Purposes of Use

• Accepting, confirming, modifying, and canceling reservations
• Notifying stores of reservation details (by email), and sending customers confirmations, day-before reminders, and cancellation notices (via LINE or on-screen display)
• Adding events to the store's Google Calendar and checking availability
• Account authentication and billing management for paid plans
• Preventing unauthorized use, responding to service issues, and improving the service
• Responding as required by law

4. Provision to Third Parties

Customer information is provided to the store with which the reservation is made. This is necessary to fulfill the reservation agreement, and customers consent to this when making a reservation. Except as described above or as required by law, we will not provide personal information to third parties without the individual's consent.

Please note that store information posted on the reservation page (store name, menu, prices, availability, and any phone number the store chooses to make public) is published not only on the reservation page but also via a public API and in machine-readable formats for AI agents. Customer information such as names, phone numbers, and reservation details is never published or provided through these means.

5. Service Providers (External Services)

This service uses the following external services, to which we entrust the storage and processing of information. Each company handles information in accordance with its own privacy policy.

• Supabase, Inc. (database and authentication)
• Vercel, Inc. (hosting and page speed measurement)
• Cloudflare, Inc. (DNS and analytics for the introduction page)
• Google LLC (calendar integration)
• LY Corporation (display within the LINE app and message delivery)
• Stripe, Inc. (payments)
• Resend, Inc. (email delivery)

Some of these services store data on servers located outside Japan (such as in the United States). Through our contracts with each company, we have confirmed that security management measures consistent with the Act on the Protection of Personal Information are in place.

6. Handling of Google User Data

The Service's use of information obtained from Google APIs (whether calendar events exist, and events it creates) complies with the Google API Services User Data Policy, including the Limited Use requirements. Information obtained is used solely to determine availability and to add bookings as calendar events, and is not used for advertising purposes or transferred to third parties.

7. Cookies

The store management dashboard uses cookies solely to keep you logged in. The booking page for customers does not use cookies, and we do not use cookies for advertising or tracking purposes. The only measurement performed on the booking page is the page load speed measurement described below (using only information that does not identify individuals).

External transmission: The Service sends information to the following external services. None of them use cookies, and no personally identifiable information such as names, phone numbers, or email addresses is sent. Neither is used on booking confirmation pages (the links sent after booking) or on the Shop admin dashboard.

• Cloudflare Web Analytics (recipient: Cloudflare, Inc., Privacy Policy): Used to understand traffic to informational pages (top page, sign-up/login, Terms of Service, Privacy Policy, etc.). Sends the URL of pages viewed, referrer, browser and device type, page load speed, and similar data.
• Vercel Speed Insights (recipient: Vercel, Inc., Privacy Policy): Used to measure and improve the loading speed of informational pages and booking pages. Sends the page URL (with parameters such as identifiers at the end of the URL removed), loading speed metrics, browser and device type, and approximate region.

8. Security Measures

All communications are encrypted using TLS. Database access is restricted on a per-store basis, and each store can view only its own information. Credentials for external services are stored in an encrypted environment.

9. Retention Period

Reservation information is retained until the store deletes its account. When a store's account is deleted, the information of customers associated with that store is also deleted.

10. Requests for Disclosure, Correction, Deletion, etc.

If you wish to request disclosure, correction, suspension of use, or deletion of your information, please contact us using the details below. Customers may also contact the store they booked with directly. We will respond in accordance with applicable laws after verifying your identity.

11. Business Operator Handling Personal Information / Contact

Ayan Sengupta (trade name: 予約Lite)
Email: hello@yoyakulite.com
Address and phone number: Will be disclosed without delay upon request.

12. Terms of Service

The conditions for using the Service are set forth in the Terms of Service.

13. Revisions

This Policy may be revised in response to changes in laws and regulations or changes to the Service. In the event of any material changes, we will provide notice on the Service.