Privacy Policy

1. Information we collect

• Feedback: the type, message, submission time and selected language. We receive your email address and image only when you choose to provide them.
• Optional diagnostics: only when you select “Include diagnostic information,” we receive the displayed browser, screen size, build information and current view. These diagnostics do not include observing coordinates or page URLs.
• Connection and security information: we or our delivery and security providers process IP addresses, access times, browser information and other connection data for service delivery and abuse prevention. We also use an identifier derived from an IP address to prevent submission abuse.

Please do not include unnecessary personal information, other people’s personal information or confidential information in messages or images.

2. How we use information

• To review, investigate, respond to and keep records of feedback
• To fix issues, improve usability and consider new features
• To provide a stable service and prevent unauthorized access and spam
• To understand trends and improve the service without identifying individuals

We do not use contact email addresses to send advertising or promotional emails.

3. Location, AR and local storage

Features that use your current location do so with browser or device permission to calculate the sky. Observing coordinates and display settings are saved within your browser. AR uses orientation sensors to align the sky with your device. The current AR mode does not capture or transmit camera video.

SIDEREUM does not automatically add these coordinates or sensor data to feedback. Information you include yourself in a message or image is transmitted with the submission. Permissions can be changed in your device or browser settings, and saved settings can be removed by clearing site data.

We use browser storage for preferences such as language and display settings, and caching to reuse assets. External delivery and security services may use cookies or similar technologies for secure delivery.

4. Service providers and disclosure

We engage external providers as needed for service delivery, information storage, inquiry management and abuse prevention. We limit the information they handle to what is necessary for these purposes, review their information management practices and provide appropriate oversight. We do not make submissions or attached images publicly available.

Information may be processed or stored outside Japan depending on providers’ operations. In such cases, we review the relevant countries’ or regions’ legal systems and the providers’ safeguards, and provide information, obtain consent or take other steps required by applicable law. Please contact us below with questions about the handling of your information.

Except where permitted by law or when engaging providers for these purposes, we do not disclose personal information to third parties without consent. We do not sell personal information.

5. Retention and security

We retain information as needed to handle inquiries, consider improvements, resolve disputes and meet legal obligations. Information no longer needed is deleted or made non-identifiable. We limit access to staff who need it for their work, keep attached images private and take measures to prevent unauthorized access and disclosure.

Service providers’ retention practices may apply to connection information needed for security.

6. Access, correction and deletion requests

Contact us below to request information about purposes of use, access, correction, deletion, suspension of use or other handling of your personal information. We verify your identity as necessary and respond under applicable law. For a submission, providing the reference number helps us locate it; the number alone may not establish identity.

Email addresses, diagnostics and images are optional. We cannot reply individually without a contact address.

7. Changes

We may revise this policy as the service or legal requirements change. Revisions and their effective dates will be announced here. We will provide notice or seek consent where required by law.

8. Operator and contact

Operator: Mashsoft Inc.
Representative: Masashi Haraki, Representative Director
Company information: Company profile
Contact: Mashsoft contact form

Please specify that your inquiry concerns personal information in SIDEREUM. The company website’s Privacy Policy applies to its contact form.