Last Updated: August 7, 2026
At ANPROTRACTOR (ANPROTRACTOR.com), protecting your privacy is our foundational technical principle. This Privacy Policy explains how our digital protractor application handles user data.
ANPROTRACTOR operates 100% locally inside your web browser. When you upload an image, CAD blueprint, photo, or document to measure angles, the file is rendered using local HTML5 Canvas API memory inside your device. Your uploaded files are never transmitted, uploaded, stored, or processed on any remote server.
We do not require user account registration, login credentials, name, phone number, or payment details. ANPROTRACTOR is completely free to use without sharing any personally identifiable information (PII).
ANPROTRACTOR uses your browser's local `localStorage` strictly to save your application preferences across sessions, including your selected color theme (Dark/Light Mode), preferred protractor mode, and your session measurement history table. You can clear this data at any time by clearing your browser cache.
We may use anonymous, privacy-focused analytics services to monitor application performance and aggregate page visits (e.g., total visitor counts). No personal browsing history or uploaded document details are tracked or sold to third parties.
If you have questions regarding this Privacy Policy, feel free to contact our technical team at support@ANPROTRACTOR.com.