Our Commitment to Privacy
At Calchub, we are committed to protecting your privacy and ensuring the security of your personal information. This Privacy Policy explains how we collect, use, and protect your information when you use our calculator platform.
Information We Collect
Personal Information
We do not collect personal information for the use of our calculators. You can use all calculator functions without providing any personal details, creating an account, or registering.
Contact Form Information
When you contact us through our contact form, we collect:
- Name and email address (to respond to your inquiry)
- Subject and message content
- Optional newsletter subscription preference
This information is used solely to respond to your inquiry and, if requested, to send you updates about new features.
Technical Information
We may automatically collect limited technical information to improve our service:
- Browser type and version
- Operating system
- IP address (anonymized)
- Pages visited and time spent
- Device type and screen resolution
This data is collected in aggregate form and cannot be used to identify individual users.
Local Storage
We use your browser's local storage to save:
- Theme preference (dark/light mode)
- Language settings
- Calculator preferences
This information never leaves your device and can be cleared at any time through your browser settings.
How We Use Your Information
We use the limited information we collect for the following purposes:
Service Provision
To provide and maintain our calculator platform, ensure functionality, and improve user experience.
Customer Support
To respond to your inquiries, provide technical support, and address any issues you may encounter.
Analytics & Improvement
To analyze usage patterns, improve our calculators, and develop new features based on user needs.
Security & Legal
To protect against abuse, ensure security, and comply with legal obligations when necessary.
Data Protection & Security
We implement appropriate technical and organizational measures to protect your information:
Local Processing
All calculations are performed locally in your browser. Your calculation data never leaves your device or reaches our servers.
HTTPS Encryption
All communication between your browser and our servers is encrypted using industry-standard SSL/TLS protocols.
No Account Required
We don't require registration or account creation, eliminating the risk of password breaches or account compromise.
Minimal Data Storage
We store only essential technical information and contact form submissions, with automatic deletion policies in place.
Third-Party Services
Calchub uses the following third-party services that may have their own privacy policies:
Google Fonts
For loading the Inter font family
May collect IP address and browser information
Google Privacy PolicyExchange Rate API
For currency conversion rates
Only used when accessing currency calculator
No personal data is sent to this service
Your Rights & Choices
You have the following rights regarding your information:
Access
Request information about what data we have collected about you (which is minimal).
Correction
Request correction of any inaccurate information we may have.
Deletion
Request deletion of your contact form submissions or any other data we may have.
Opt-out
Opt out of any analytics or tracking by using browser privacy settings.
To exercise any of these rights, please contact us at privacy@calchub.com.
Cookies & Local Storage
Calchub uses minimal cookies and local storage for essential functionality:
You can disable cookies in your browser settings, though this may affect some functionality. Local storage can be cleared through your browser's privacy settings.
Children's Privacy
Calchub is suitable for users of all ages, including students. We do not knowingly collect personal information from children under 13. Since our calculators work without registration and all processing is done locally, children can safely use our tools for educational purposes.
If you are a parent or guardian and believe your child has submitted personal information through our contact form, please contact us immediately at privacy@calchub.com.
Changes to This Policy
We may update this Privacy Policy from time to time to reflect changes in our practices or for legal reasons. We will notify users of any material changes by:
- Posting the updated policy on this page
- Updating the "Last updated" date at the top
- Providing notice on our homepage for significant changes
- Sending email notification to users who have subscribed to updates
Your continued use of Calchub after any changes indicates your acceptance of the updated Privacy Policy.
Privacy Questions?
If you have any questions about this Privacy Policy or our data practices, please don't hesitate to contact us.