Privacy Policy

Last updated: March 25, 2026

1. Scope and Controller Information

This Privacy Policy explains how InvestTool ("InvestTool", "we", "our", or "us") collects, uses, stores, and protects personal data when you use our financial calculator website, investtool.app. InvestTool acts as the data controller for personal data described in this policy.

2. Data We Collect

We collect only the data necessary to operate and improve InvestTool:

a) Account and email data: when you create an account or subscribe, we collect your email address and authentication metadata through Supabase authentication services.

b) Calculator usage data: most calculator inputs are processed in your browser. If you are logged in and choose to save calculations, those saved values are stored in our Supabase database under your account.

c) Analytics and device data: we use Google Analytics 4 (GA4) and similar telemetry to collect aggregated usage information such as page views, approximate region, device/browser type, referral source, and interaction events.

3. Cookies and Tracking Technologies

InvestTool uses cookies and similar technologies for essential functionality, analytics, and advertising readiness. GA4 may place cookies to understand traffic and engagement trends. Third-party advertising partners, including Google AdSense, may use cookies or identifiers to personalize and measure ads, subject to your region and consent preferences.

4. Legal Bases (GDPR)

Where GDPR applies, we process personal data based on one or more of the following legal bases: consent (e.g., optional communications/certain cookies), performance of a contract (account features), legitimate interests (service security, fraud prevention, product improvement), and legal obligations.

5. CCPA/CPRA Notice

California residents may have rights to know, access, correct, and delete personal information, and to opt out of "sharing" for cross-context behavioral advertising where applicable. InvestTool does not sell personal information for money. To submit a privacy request, contact us at contact@investtool.app.

6. Data Retention

We retain personal data only as long as reasonably necessary for the purposes in this policy, including account maintenance, legal compliance, dispute resolution, and security. You may request account deletion, subject to legal or operational retention obligations.

7. Data Security

We use reasonable administrative, technical, and organizational safeguards to protect your data, including managed infrastructure, transport encryption, access controls, and monitoring. No online system can be guaranteed fully secure, but we continuously improve our safeguards.

8. International Transfers

Your data may be processed in countries other than your own. Where required, we use appropriate safeguards for cross-border data transfers.

9. Your Rights

Depending on your jurisdiction, you may have rights to access, rectify, erase, restrict, object, and request portability of your personal data, and withdraw consent where processing is consent-based. You may also lodge a complaint with your local supervisory authority.

10. Children's Privacy

InvestTool is not intended for children under the age of 13 (or higher age where required by local law), and we do not knowingly collect personal information from children.

11. Updates and Contact

We may update this Privacy Policy from time to time. Material changes will be posted on this page with a revised "Last updated" date. For privacy requests and questions, contact contact@investtool.app.