Privacy Policy
We built Synaptic Calculus to be a tool you can trust. That means being transparent about what data we do — and don't — collect.
🔒 Short version: All calculations happen entirely in your browser. We do not collect, store, or sell any personal information you enter into our calculators.
1. Who We Are
Synaptic Calculus ("we", "us", or "our") operates the website at synapticcalculus.com. We provide free online calculators for finance, health, mathematics, and unit conversions.
If you have any questions about this policy, contact us at privacy@synapticcalculus.com.
2. Information We Do Not Collect
Our calculators run entirely client-side in your web browser. This means:
- No financial figures, health metrics, or personal numbers you enter are transmitted to our servers.
- We do not create user accounts or require registration of any kind.
- We do not store calculation history or results.
- We do not collect names, email addresses, or any identifying information unless you contact us directly.
3. Information We Do Collect
3a. Analytics
We use standard web analytics to understand how visitors use our site. This may include your approximate geographic region (country/city level), browser type, device type, pages visited, and time spent on the site. This data is aggregated and cannot identify you personally.
3b. Server Logs
Our web server automatically records basic request logs including your IP address, the page you requested, and the date and time of the request. These logs are used for security and performance purposes and are retained for a maximum of 30 days.
3c. Contact Form and Email
If you contact us via email, we will retain your email address and the contents of your message in order to respond to you. We do not add you to any mailing list without explicit consent.
3d. Advertising (Google AdSense)
We display advertisements served by Google AdSense. Google may use cookies and similar technologies to show you relevant ads based on your browsing history across websites. This is governed by Google's Privacy Policy. You can opt out of personalised advertising at adssettings.google.com.
4. Cookies
Synaptic Calculus itself does not set cookies for its own purposes. However, third-party services we use (such as Google AdSense and analytics) may set cookies on your device. You can control cookie settings through your browser preferences.
5. Your Rights (GDPR / UK GDPR)
If you are located in the European Economic Area or the United Kingdom, you have the following rights regarding any personal data we hold:
- Right of access — you may request a copy of any personal data we hold about you.
- Right to rectification — you may ask us to correct inaccurate data.
- Right to erasure — you may ask us to delete personal data we hold about you.
- Right to object — you may object to our processing of your data.
- Right to data portability — you may request a machine-readable copy of your data.
To exercise any of these rights, email privacy@synapticcalculus.com. We will respond within 30 days.
6. California Privacy Rights (CCPA)
If you are a California resident, you have the right to know what personal information we collect, to request deletion of your personal information, and to opt out of the sale of your personal information. We do not sell personal information. To make a CCPA request, contact us at privacy@synapticcalculus.com.
7. Children's Privacy
Synaptic Calculus is not directed at children under the age of 13. We do not knowingly collect personal information from children. If you believe a child has provided us with personal information, please contact us so we can delete it.
8. Links to Third-Party Sites
Our blog posts and pages may link to external websites. We are not responsible for the privacy practices of those sites and encourage you to review their privacy policies independently.
9. Changes to This Policy
We may update this Privacy Policy from time to time. When we do, we will update the "Last updated" date at the top of this page. We encourage you to review this policy periodically. Continued use of the site after changes constitutes acceptance of the updated policy.
10. Contact Us
If you have questions, concerns, or requests relating to this Privacy Policy, please contact us:
- Email: privacy@synapticcalculus.com
- Website: synapticcalculus.com/contact