Summary
Your sensitivity settings never leave your browser. We use optional analytics to improve the site. You can disable tracking anytime.
1. Data We Collect
We collect minimal data to operate this site:
Calculation Data
DPI, sensitivity, and other values you enter are processed entirely in your browser. Nothing is sent to our servers.
Usage Analytics
If enabled, we collect anonymized page views, device type, and general location (country level) through Google Analytics 4 and Microsoft Clarity.
Technical Data
Standard server logs may include IP addresses, browser type, and referring URLs. These may be retained for security and operational purposes, depending on hosting configuration.
2. Analytics Services
We may use the following third-party analytics services:
| Service | Purpose | Data Collected |
|---|---|---|
| Google Analytics 4 | Measures page views, session duration, and traffic sources to help us understand which tools are most useful. | Anonymized IP, device category, browser, country, pages visited |
| Microsoft Clarity | Records anonymized session replays and heatmaps to identify usability issues. | Mouse movements, clicks, scroll depth (no personal data captured) |
Both services may be configured to anonymize IP addresses where supported. We aim to collect no personally identifiable information through analytics.
3. Advertising
This site may display ads through Google AdSense. When ads are enabled:
- Google may use cookies to serve ads based on your prior visits to this or other websites
- You can opt out of personalized advertising at Google's Ad Settings (adssettings.google.com)
- Non-personalized ads may still appear based on page content and general location
Ad display depends on your region and cookie preferences. Some users may not see any ads.
4. Cookies & Local Storage
We use browser storage for the following purposes:
| Type | Purpose | Storage | Duration |
|---|---|---|---|
| Essential | Theme preference (dark/light mode) | localStorage | Persistent until cleared |
| Analytics | Google Analytics tracking ID | Cookies | Up to 2 years |
| Advertising | Ad personalization (if enabled) | Cookies | Varies by provider |
You can clear cookies and local storage through your browser settings at any time.
5. Third-Party Services
This site uses the following external services:
| Service | Purpose | Privacy Policy |
|---|---|---|
| Google Fonts | Typography (Plus Jakarta Sans, Inter) | fonts.google.com/about |
| Cloudflare | Hosting and CDN | cloudflare.com/privacypolicy |
6. Your Rights & Choices
You have control over your data:
- Disable JavaScript to prevent all analytics and ad scripts from loading
- Use browser extensions like uBlock Origin or Privacy Badger to block trackers
- Clear cookies and local storage to reset any stored preferences
- Use private/incognito browsing to prevent persistent tracking
Since we don't collect personal data, there is no account data to delete or export.
7. Children's Privacy
This site is not directed at children under 13. We do not knowingly collect information from children. If you believe a child has provided us with personal information, please contact us.
8. Policy Changes
We may update this policy to reflect changes in our practices or legal requirements. Significant changes will be noted with an updated effective date at the top of this page. Continued use of the site after changes constitutes acceptance of the revised policy.
9. Contact
Questions about this privacy policy? Open an issue on our GitHub repository or use the contact methods listed on our About page.