Who operates this website
Plusminus Lab operates this website as a sole proprietor in Japan. Privacy questions can be sent to plusminus10102020@gmail.com.
Information collected by this website
This static website has no contact form, account system, analytics script, advertising tracker, or embedded third-party content. It does not intentionally set cookies or save information in your browser.
Hosting and technical information
The hosting provider may process IP addresses, requested pages, timestamps, and browser information to deliver and secure the website. Technical logs are handled according to the provider’s applicable policies and settings.
Email inquiries
When you send an email, the operator receives the information you include, such as your name, email address, and inquiry. It is used to respond, discuss your inquiry, and maintain necessary business correspondence. Please avoid sending sensitive information.
Storage and privacy requests
Inquiry information is handled through the operator’s email service and retained for responding to inquiries and necessary business records. Please contact plusminus10102020@gmail.com with questions about your information, retention, or requests for access, correction, or deletion. Requests are handled in accordance with applicable obligations.
External links and policy changes
Links to BOOTH, Coconala, and Gumroad lead to external services with their own privacy policies. This policy will be updated when the website or the handling of information changes.
Mobile app “過去問ノート” (Law Study)
The Android app published by this business (予備試験・司法試験 過去問ノート) processes the following information. Sign-in: Firebase Authentication (Google) provides an account identifier and email address. Study data: answers, notes, and progress are stored on the device and, when you sign in, synced to Google Firebase (Cloud Firestore). AI grading: essay text you choose to submit is sent to our grading server and processed by Anthropic’s Claude API to produce feedback; it is used only to return the result and to apply usage limits. Subscription: purchases are handled by Google Play; we receive subscription status, not your payment details. We do not sell personal information, show advertising, or use it for tracking. To request deletion of your account data, email the address above from your registered address.