Privacy Policy
Last Updated: March 2026 · Effective for https://calchubpro.in/
Summary: CalcHub Pro performs all computational tasks locally within your browser. We never log, store, or transmit the loan amounts, salary inputs, body weights, or birthdates you enter. We do not maintain user databases or sell personal data.
Welcome to CalcHub Pro ("we", "our", or "us"). This Privacy Policy explains how personal and technical information is collected, processed, and safeguarded when you visit https://calchubpro.in/ and use our suite of 17+ online calculators.
1. Zero Storage of Calculator Inputs
CalcHub Pro was architected from the ground up on a client-side execution model. When you use any calculator (such as EMI, Home Loan, Car Loan, GST, Simple/Compound Interest, Percentage, BMI, or Age Calculators):
- All inputs and mathematical computations occur strictly on your local device via JavaScript.
- None of your numbers, financial figures, or dates are transmitted across the internet to our web servers.
- When you refresh or close your browser tab, your calculator session inputs are immediately wiped from memory.
2. Technical & Analytics Data We Collect
Like virtually all modern web properties, we collect standard non-identifying diagnostic data to ensure web stability and performance:
- Server Logs: Standard HTTP request data collected by our web hosting infrastructure (GitHub Pages / Fastly CDN), including IP address, browser user-agent, operating system, and timestamp.
- Google Analytics: We use Google Analytics 4 (Measurement ID:
G-DNLZJ1ZD02) to measure aggregated metrics such as page views, visitor country, and average session duration. IP addresses are anonymized.
3. Advertising & Google AdSense
CalcHub Pro is supported by digital advertising to keep our suite 100% free for students and users worldwide:
- We partner with Google AdSense (Publisher ID:
ca-pub-4210376416554457) to display relevant advertisements. - Google and third-party vendors use cookies to serve ads based on a user's prior visits to this website or other websites.
- Google's use of advertising cookies enables it and its partners to serve ads to users based on their visit to our site and/or other sites on the Internet.
- Users may opt out of personalized advertising by visiting Google Ads Settings or through AboutAds.info.
4. Cookies & Local Storage
Cookies are small text files stored in your browser. We use cookies and local storage only for:
- Consent State: Remembering whether you accepted or dismissed our cookie consent banner via
localStorage.getItem('ck_consent'). - Analytics & Advertising: Cookies set by Google Analytics (e.g.,
_ga) and Google AdSense to count unique visitors and display relevant advertisements.
5. Direct Inquiries & Contact Data
If you choose to contact us through our Contact Page, we receive your name, email address, and message content. This information is used strictly to respond to your specific question, feedback, or bug report. We never add your email to marketing lists or sell contact lists to third parties.
6. Data Rights (GDPR, CCPA & Indian DPDPA)
Depending on your geographical jurisdiction, you have statutory rights regarding your personal data, including the right to request access, correction, deletion, or objection to automated processing. Because CalcHub Pro does not create user profiles or store calculator inputs, we hold virtually zero identifying user records. For any privacy queries, please reach out via our contact page.