Privacy Policy

1Introduction

Welcome to Attendance Calculator (attendancecalculator75.com). We respect your privacy and are committed to maintaining the highest level of confidentiality and transparency. This Privacy Policy outlines what information is collected, how it is used, and how we safeguard your browsing experience when accessing our educational calculators and web utilities.

2Information We Do Not Collect

Unlike conventional portal apps or cloud services, Attendance Calculator is engineered as a Local-First Web Application.

• No Personal Identifiable Information (PII): We do not ask for your real name, student roll number, college registration ID, email address, or phone number.
• No Attendance Data Storage: The numbers you enter into the calculator (classes attended, total classes conducted, target percentage, course names) are executed solely in your device's memory (RAM) or optional local browser storage (`localStorage`). They are never transmitted to our remote servers or database.
• No Academic Records: We have no access to your university portal credentials, grades, or transcripts.

3Information Automatically Collected (Web Analytics & Logs)

When you navigate our website, basic non-personally identifiable diagnostic and telemetry data may be processed to ensure operational reliability, fast page loads, and security:

4Cookies & Local Storage Usage

We use minimal cookies and local browser storage strictly for site enhancement and functionality:

• Theme Preference (`theme`): Stored locally in your browser's localStorage to remember whether you selected Light Mode or Dark Mode between visits.
• Analytics Cookies: Cookies set by Google Analytics (e.g., _ga, _ga_*) to distinguish unique sessions without identifying individuals.

5Data Security & Protection

All data communications with our site are secured using industry-standard Transport Layer Security (TLS/HTTPS 256-bit encryption). We implement robust HTTP security headers including Content-Security-Policy, HSTS, X-Content-Type-Options, and Referrer-Policy to prevent cross-site scripting and unauthorized data interception.

6Children & Student Privacy (FERPA / COPPA)

Our platform does not solicit or knowingly collect personal identifiable information from children under the age of 13. Since calculations happen locally on your device without backend account storage, we do not possess or retain student educational records under FERPA or COPPA definitions.

7Changes to This Policy

We may update this Privacy Policy periodically to reflect technological improvements, legal obligations, or new features. When updates occur, the "Effective & Last Updated" date at the top of this document will be updated. We encourage you to review this page periodically.