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Privacy
Privacy Policy
Effective date: January 1, 2026
Last updated: January 7, 2026
Version 1.0
If this policy changes, the date above will be updated.
CalcWise is built to be privacy-respectful. Calculator inputs stay in your browser, and data collection is limited to what keeps the site running and supported by ads.
Email: aaron@calcwise.org
Policy scope: calcwise.org and its calculators.
Privacy summary
CalcWise does not ask for accounts, and calculations are performed in the browser. Limited analytics and ads are used to keep the site running.
- Calculator inputs are not sent to CalcWise servers.
- No accounts, logins, or subscriptions are required.
- Plausible analytics are used without cookies.
- Ads may use cookies or identifiers depending on region.
Quick facts
- Data collected: basic usage and ad delivery.
- Data sold: none.
- Contact: calcwise.org/contact/.
- Owner: Aaron Jegla.
In-browser calculations
Calculator data stays on your device unless you choose to share it.
Local processing: Calculator inputs run in the browser and are not sent to CalcWise servers.
No form submissions: Calculators do not require login or account data.
Exports: CSV downloads are generated in your browser and saved locally.
Plausible analytics
CalcWise uses Plausible to understand which calculators and guides are helpful. It is configured without cookies and focuses on aggregated reporting.
- Aggregated pageviews and top pages.
- Referrer and campaign parameters when present in the URL.
- Browser and device type for usage trends.
- Country-level location for aggregated reporting.
Plausible privacy policy
Review the data Plausible collects and how it defines personal data.
Blocking JavaScript or using privacy tools prevents analytics from loading.
Google AdSense advertising
Ads help cover operating costs. Google may serve contextual or personalized ads depending on region and consent settings.
- Google may use cookies or identifiers to serve and measure ads.
- Ad interaction data can be used for performance measurement and fraud detection.
- Consent prompts may appear in regions that require them.
- CalcWise receives aggregated ad reporting, not individual profiles.
Google policies and controls
Learn how Google uses data in advertising and manage ad settings.
Email and support messages
Contact data is used only to respond and improve the site.
What is stored: Email address, message content, and any attachments you send.
Why: Responding to requests, fixing issues, and improving calculators.
Retention: Messages are typically retained for up to 12 months for support reference, then deleted unless legally required.
What CalcWise does not collect
CalcWise avoids collecting personal or sensitive data.
No calculator inputs: Inputs stay in your browser and are not stored on CalcWise servers.
No accounts: There are no logins, profiles, or subscription records.
No selling of data: CalcWise does not sell personal information, including to California residents under CCPA.
Regional privacy notes
CalcWise serves a global audience and follows regional requirements for consent and data handling.
- EEA/UK: Consent prompts are provided where required under GDPR and related rules.
- CalcWise processes minimal data and does not require account creation.
- California: CalcWise does not sell personal information.
Questions or requests
You can contact aaron@calcwise.org with privacy questions or requests.
Children's privacy
CalcWise is intended for general audiences.
CalcWise does not knowingly collect information from children under 13.
If a parent or guardian believes a child has provided personal data, contact us to remove it.
Third-party policies and consent
CalcWise loads a small set of third-party services for analytics and ads. Their privacy policies explain how they handle data and consent choices.
External links and consent
Links to other sites (including sources) open in a new tab and follow their own privacy policies.
Consent prompts may appear in certain regions for advertising. If you disable JavaScript, calculators still work, but analytics and ads may not load.
Your choices
Control the data shared from your device.
Ad controls
Manage personalization at adssettings.google.com.
Reach out
Email aaron@calcwise.org with privacy questions.
Leave feedback
Use the contact page if something looks off.
Need help?
Reach out directly for corrections or privacy questions.