01Scope
This Privacy Policy applies to the handling of user information in the grow books application and this website (collectively, the “Service”) provided by Tea (the “Operator”).
02Information we collect
The Operator collects the following information to the extent necessary to provide the Service:
- Account information: user identifiers, authentication information, and, when you choose Google Sign-In, information such as the email address provided by the authentication provider
- Profile information: display name and the profile image you set
- Reading and shelf information: registered books, reading status, ratings, reflections, notes, categories, purchase information, reading dates, reading goals, and similar records
- Images you upload, including profile images and book cover images
- Preference information, including display language, theme, font, and other app settings
- Purchase information: subscription status, products, and information about purchases, renewals, and restorations. The Operator does not directly collect payment information such as credit card numbers
- Usage and connection information: IP address, device, operating system and app versions, access times, errors, server logs, and similar information
- Inquiry information: your name or display name, email address, and the content of your inquiry
Camera and photo access
The camera is used to scan book barcodes. The photo library is accessed only when you choose a profile image or book cover image. You can change these permissions at any time in your device settings.
03How we use information
We use the information we collect to:
- Provide the Service, authenticate users, synchronize data, and save preferences
- Provide book search, registration, shelf display, and reading record features
- Process subscription purchases and restorations and verify subscription status
- Respond to inquiries and deliver important notices
- Prevent misuse, maintain security, and investigate service disruptions
- Improve the Service and consider new features
- Comply with laws and the Terms of Service
04External services and data sharing
The Service uses the following external services to provide its features. Each provider handles the information it receives in accordance with its own privacy policy and other applicable terms.
| Service | Main information sent | Purpose |
|---|---|---|
| Supabase | Account identifiers, profile, shelf and reading records, preferences, and connection information | Authentication, database, and API services |
| Cloudflare | Images you upload and connection information | Image storage and delivery, and website delivery |
| Information required for authentication, book search terms, and ISBNs | Google Sign-In and book information search | |
| Rakuten / openBD | Book search terms and ISBNs | Searching for and retrieving book information |
| Apple / RevenueCat | User identifiers, purchased products, purchases, renewals, restorations, and subscription status | In-app purchases and purchase status management |
| Google Forms | Information you enter in the form | Receiving inquiries |
We do not provide personal data to third parties unless required by law, necessary to protect a person’s life, body, or property, or done with your consent. If an external provider’s servers are located outside Japan, information may be processed and stored outside Japan.
05Security
The Operator takes reasonable security measures to prevent the leakage, loss, or damage of user information. These measures include access controls, encryption in transit, appropriate management of authentication information, and least-privilege access settings.
06Retention
We retain user information for as long as necessary to provide the Service and fulfill the purposes described above, or for any period required by law. When we receive a request to delete an account, we delete or anonymize the information within a reasonable period, except for information that must be retained by law or to prevent misuse. Information in backups is deleted according to the normal backup update cycle.
07Your rights and requests
Subject to applicable law, you may request access to, correction or addition of, deletion of, restriction of use of, or cessation of third-party provision of your personal information. To make a request, contact us using the details below. We may ask you to verify your identity.
08Use by minors
If you are a minor, use the Service only after obtaining consent from a parent, guardian, or other legal representative as required by the laws applicable to your age and place of residence.
09Changes to this Policy
The Operator may revise this Policy in response to changes in law or the Service. We will clearly announce material changes within the Service or on this website. The revised Policy takes effect when posted on this page or on a separately stated effective date.
10Contact
For questions about this Policy or how we handle user information, contact us using the details below.