Introduction

Welcome to Ultimate Calculus Solver. We respect your privacy and are committed to protecting your personal data. This privacy policy explains how we collect, use, and safeguard your information when you use our service.

Information We Collect

Account Information

When you create an account, we collect:

Email address
Authentication credentials (managed securely by Supabase)
Plan type (free or pro)

Usage Data

When you use our service, we store:

Problems you solve (input, commands, results)
Favorites and history
Exported files (PNG, PDF)

Analytics (Optional)

With your consent, we collect anonymized usage data via Plausible Analytics:

Operation types and success rates
Example usage patterns
Feature interactions
No personal data, IP addresses, or cookies

How We Use Your Information

To provide and maintain our service
To save your work and sync across devices
To process payments via Stripe
To send you service-related emails (with your permission)
To improve our service (anonymized analytics only)

Data Storage and Security

Your data is stored securely using:

Supabase: Database and authentication (encrypted at rest and in transit)
Stripe: Payment processing (PCI-DSS compliant)
Supabase Storage: File storage for exports

Your Rights

You have the right to:

Access: Request a copy of your data
Delete: Request deletion of your account and data
Opt-out: Disable analytics at any time
Export: Download your problem history

To exercise these rights, visit Settings or contact us at ultimatecalculussolver@gmail.com.

Third-Party Services

We use the following third-party services:

Supabase: Data storage and authentication
Stripe: Payment processing
Plausible Analytics: Privacy-friendly analytics (with consent)

Changes to This Policy

We may update this privacy policy from time to time. We will notify you of any changes by updating the "Last updated" date at the top of this policy.

Contact Us

If you have questions about this privacy policy, please contact us at ultimatecalculussolver@gmail.com.

Privacy Policy