Privacy Policy
Last updated: April 2026
1. Who We Are
Easy-Compound-Interest.com is a financial calculator tool operated as a solo/indie product. We take your privacy seriously and are committed to protecting your personal data.
2. What Data We Collect
- Email address — collected when you create an account or purchase a Pro subscription.
- Payment information — handled entirely by Stripe. We never see or store your card details.
- Usage data — anonymous calculation counts stored locally in your browser (localStorage). We do not track individual calculations server-side.
3. How We Use Your Data
- To provide access to your Pro account.
- To send you essential account emails (e.g. login, account confirmation).
- Newsletter emails — if you subscribe, we'll send updates about new guides, features, and financial insights. You can unsubscribe anytime.
- To occasionally inform you of new products that may interest you — we will never spam you.
4. We Do Not Sell Your Data
We will never sell, rent, or share your personal details with third parties for marketing purposes. Full stop.
5. Third-Party Services
- Stripe — for secure payment processing. Subject to Stripe's Privacy Policy.
- Base44 — our app hosting platform. Subject to Base44's terms.
6. Cookies & Local Storage
We use browser localStorage to track your free calculation count. No third-party tracking cookies are used.
7. Your Rights
You can request deletion of your account and associated data at any time by contacting us. We will action all requests promptly.
8. Contact
For any privacy-related questions, please reach out via the contact details on our website.