Privacy Policy
Last Updated: May 1, 2026
QuickCalc Hub ("we", "our", "us") respects your privacy and is committed to protecting your personal data. This Privacy Policy explains how we collect, use, store, and protect your information when you use our website and mobile applications.
1. Information We Collect
1.1 Information You Provide
- Calculation inputs: Numbers and values you enter into our calculators are processed locally on your device and are not transmitted to our servers.
- Support requests: If you contact us for help, we may receive your email address and the details you choose to provide.
1.2 Information Collected Automatically
- Analytics data: We use Google Analytics and Firebase to understand app usage (e.g., which calculators are most popular, crash reports). This includes device type, operating system, app version, and anonymized usage patterns.
- Advertising data: Google AdSense may collect device identifiers and usage data to serve personalized ads. You can opt out of personalized ads in your device settings.
- Device information: Basic technical data including device model, OS version, and screen size to optimize performance.
2. How We Use Your Information
- To provide and maintain our calculator services
- To improve app performance and fix bugs
- To show relevant advertisements
- To comply with legal obligations
3. Data Storage and Security
- All calculation data is processed locally on your device. We do not store your calculator inputs on our servers.
- We implement industry-standard security measures to protect any data we do collect.
4. Third-Party Services
We use the following third-party services:
- Google Analytics: Usage analytics (anonymized)
- Google AdSense: Advertising
These services have their own privacy policies. We encourage you to review them.
5. Your Rights (GDPR / CCPA)
Depending on your location, you have the following rights:
- Right to access: Request a copy of your personal data
- Right to deletion: Request deletion of your data
- Right to opt-out: Opt out of personalized advertising and analytics
- Right to portability: Receive your data in a portable format
To exercise these rights, contact us at support@calcsy.app.
6. Children's Privacy
Our services are not directed to children under 13. We do not knowingly collect data from children under 13. If you believe we have collected data from a child under 13, please contact us immediately.
7. Cookies and Tracking
We use cookies and similar technologies for:
- Essential app functionality (language preference)
- Analytics (understanding app usage)
- Advertising (personalized ads for free users)
You can manage cookie preferences through your device settings or our cookie consent banner.
8. International Data Transfers
Your data may be processed in countries other than your own. We ensure appropriate safeguards are in place for such transfers, including standard contractual clauses approved by the European Commission.
9. Changes to This Policy
We may update this Privacy Policy periodically. We will notify you of significant changes through the app or via email. Continued use of the app after changes constitutes acceptance.
10. Contact Us
This Privacy Policy is effective as of May 1, 2026 and complies with GDPR (EU), CCPA (California), LGPD (Brazil), PIPEDA (Canada), and other applicable privacy regulations.