Last updated: July 23, 2026
Free users: No personal information is required. All calculations are performed in your browser. We do not store, transmit, or log your calculator inputs.
Pro subscribers: We collect your email address when you subscribe via Stripe. Payment information (credit card details) is handled entirely by Stripe and never touches our servers.
Saved scenarios: If you use the save scenario feature (Pro), your calculation inputs are stored in our database associated with your account.
We do not sell, rent, or trade your personal data to third parties.
All payments are processed by Stripe. We never see, access, or store your credit card number, CVV, or other payment credentials. Stripe is PCI DSS Level 1 certified. See Stripe's Privacy Policy for details on how they handle payment data.
We use minimal browser storage:
We do not use advertising, tracking, or analytics cookies that follow you across other websites.
If you are in the EU/UK (GDPR) or California (CCPA), you have the right to:
To exercise any of these rights, contact us at support@ratecalculator.appsnap.co.uk. We respond within 30 days.
We implement industry-standard security measures including encrypted connections (HTTPS/TLS), secure password handling via Stripe, and regular security reviews. However, no method of transmission over the internet is 100% secure.
The Service is not directed to children under 16. We do not knowingly collect data from children. If you believe a child has provided us information, contact us for immediate deletion.
The Service is hosted in the United Kingdom. If you access it from outside the UK, your data may be transferred to and processed in the UK. By using the Service, you consent to this transfer.
We may update this Privacy Policy from time to time. Material changes will be communicated via email to active subscribers. The "Last updated" date above reflects the most recent revision.
For privacy questions or data requests: support@ratecalculator.appsnap.co.uk