Effective August 17, 2026

Privacy Policy

This Privacy Policy explains how Morrowshift collects and uses information for Naitsundoku: Book Tracker.

Information We Collect

• Account information, such as username, email address, birth date, optional sex, and account status.
• Approximate country information inferred during sign up or app use for security, analytics, and compliance.
• Reading and study data, such as books, reading sessions, notes, flashcards, reminders, badges, review history, and progress.
• Images or text you submit to app features, such as book cover images or AI highlight photos.
• Internal testing signup information, such as the Google account email you provide for a Google Play testing invitation and the time you gave consent.
• Device, diagnostics, and crash information used to keep the app reliable and investigate errors.

How We Use Information

• Provide account access, book tracking, notes, flashcards, reminders, badges, and progress features.
• Generate draft notes or flashcards when you choose to use AI highlight tools.
• Provide free launch access to app features and enforce the daily AI generation limit.
• Contact people who request internal testing access and send the Google Play testing invitation when testers are selected.
• Improve reliability, detect abuse, debug crashes, and protect the service.
• Create aggregated or anonymous metrics that do not identify individual users.

AI Highlight Processing

When you use AI highlight tools, the selected image or extracted text may be sent to an AI provider to generate draft notes or flashcards. Drafts are not saved unless you choose to save them in the app.

Internal Testing Signup

If you join the internal testing list through the website, we collect the email address of the Google account you want to use for Google Play testing. We use it only to contact you about Naitsundoku testing and to manage invitations.

You can request removal from the testing list by emailing privacy support. We keep the address only while it is useful for the testing process or as needed for security and recordkeeping.

Age Eligibility

Birth date is used to confirm that a user is eligible to use the app. Users under 18 cannot create an account or access the service.

Data Sharing

We use service providers to operate the app, including hosting, storage, email delivery, crash reporting, analytics, and AI processing. We do not sell your personal information.

Data Retention

We keep account and app data while your account is active or as needed to provide the service. Some records may be kept longer when required for security, legal, tax, fraud-prevention, or dispute purposes.

Your Choices

• You can update certain account details inside the app.
• You can request removal of an internal testing signup email.
• You can request access, correction, or deletion of your data.

Children

Naitsundoku is for users 18 and older and is not directed to children or minors. If we learn that a person under 18 created an account or provided personal information, we will take steps to restrict access and delete the account information where appropriate.

Security

We use reasonable technical and organizational measures to protect data, including encrypted transport where supported. No internet service can be guaranteed to be completely secure.

Contact