1. Introduction
To Scale Ruler ("we", "our", or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and protect information when you use our online ruler application.
2. Data Collection and Storage
2.1 Local Storage Only
Important: We do not collect, store, or transmit any personal information, measurements, text, or calibration data to our servers or any third-party servers. All calibration data is stored exclusively in your browser's localStorage on your device.
2.2 What is Stored Locally
The following information may be stored locally in your browser:
- Calibration settings (pixels per millimeter, calibration method)
- Theme preference (light or dark mode)
- Timestamp of last calibration (to verify calibration is not expired)
2.3 What We Do NOT Store
We do not store, collect, or transmit:
- Any measurements you take using the ruler
- Any text you may enter
- Personal identification information
- IP addresses or device identifiers
- Usage analytics or tracking data
3. Cookies and Tracking
3.1 Google AdSense
This website uses Google AdSense, a service provided by Google LLC ("Google") for displaying advertisements. Google AdSense uses cookies and similar technologies to serve ads based on your prior visits to this website and other websites. This enables Google and its partners to serve ads to you based on your visit to our site and/or other sites on the Internet.
You may opt out of personalized advertising by visiting Google's Ads Settings. You can also opt out of some third-party vendors' uses of cookies for personalized advertising by visiting www.aboutads.info/choices.
3.2 Third-Party Cookies
Google and its partners may set cookies when you visit our site. These cookies are used to:
- Display relevant advertisements
- Limit the number of times you see an ad
- Measure the effectiveness of advertisements
4. Data Security
Since all calibration data is stored locally in your browser, you have full control over your data. You can clear your calibration at any time using the "Clear Calibration" button in the application, or by clearing your browser's localStorage. This will permanently delete all locally stored calibration data.
5. Third-Party Services
Our application may contain links to third-party websites or services. We are not responsible for the privacy practices of these third-party sites. We encourage you to review the privacy policies of any third-party sites you visit.
Google AdSense, used on this site, has its own privacy policy which can be found at Google Privacy Policy.
6. Children's Privacy
Our service is not intended for children under the age of 13. We do not knowingly collect personal information from children under 13. Since we do not collect any personal information from anyone, this is not a concern with our service.
7. Changes to This Privacy Policy
We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date. You are advised to review this Privacy Policy periodically for any changes.
8. Contact Us
If you have any questions about this Privacy Policy, please contact us through our contact page.