Privacy Policy

Oboeru · Effective 25 September 2026

Oboeru ("the app", "we", "us") is a Japanese vocabulary-learning app published by Under Banyan. This policy explains what information we handle, why we handle it, and the choices available to you.

Information we collect

How we use it

We do not sell your personal data, we do not use it for advertising, and we do not collect the device advertising identifier.

Service providers and disclosures

We use service providers for account sign-in, cloud storage and synchronisation, content and speech generation, app distribution and payments, security, and optional analytics and crash diagnostics. They receive only the information reasonably needed to perform those services.

We may also disclose information:

International processing

We and our service providers may process information in countries other than the one where you live. Where required, we use appropriate safeguards for international processing.

Analytics choices & consent

You can turn optional usage analytics and crash reporting off or on at any time under Settings → Privacy. Where prior consent is required, this collection remains off until you allow it. Turning it off stops future collection by the app.

Data retention & deletion

We generally keep account and learning information while your account is active. You can request deletion from Settings → Delete account or by using our account-deletion page. Limited records may be retained when reasonably necessary for legal, accounting, fraud-prevention, dispute-resolution, or security purposes, and are removed or de-identified when no longer needed.

Your choices and requests

In addition to the controls available in the app, you may contact us to ask about, access, or correct your personal information, or to raise a privacy concern. Rights vary by location, and we will respond as required by applicable law.

Security

We use reasonable technical and organisational measures to protect information, including encrypted connections. No storage or transmission method can be guaranteed to be completely secure.

Children

The app is not directed to children under 13, and we do not knowingly collect personal information from them.

Changes to this policy

We may update this policy from time to time. Material changes will be reflected by updating the effective date at the top of this page.

Contact

Questions or data-deletion requests: oboeru@underbanyan.com.