Privacy Policy

Last updated: March 2, 2026

= Math Solver ("the App") is developed by John T. Foster. This privacy policy explains how we collect, use, and protect your information.

Information We Collect

Account Information

When you create an account using Sign in with Apple or email, we collect:

• Email address (may be a private relay address via Apple)
• A unique user identifier

Account information is managed by Firebase Authentication (Google LLC).

Math Expressions

When you use the App to solve a math problem, your handwritten input is:

• Converted to text using AI-powered recognition (OpenAI API)
• Sent to our solver service to generate a solution
• Not stored permanently — expressions are processed in real-time and not retained after generating your solution

Purchase Information

If you subscribe, purchase data is managed by:

• Apple (via App Store)
• RevenueCat (subscription management)

We do not directly process or store payment information.

How We Use Your Information

• Authentication: To manage your account and sync your subscription status
• Math solving: To process your handwritten input and return solutions
• Subscription management: To verify your subscription status and enforce usage limits

Third-Party Services

Service	Purpose	Data Shared
Firebase Auth (Google)	Authentication	Email, user ID
OpenAI API	Handwriting recognition	Math expression images
RevenueCat	Subscription management	User ID, purchase status

We do not use any analytics, advertising, or tracking services.

Data Retention

• Account data: Retained while your account is active. Delete your account to remove all data.
• Math expressions: Processed in real-time; not stored after solution is generated.
• Purchase history: Managed by Apple and RevenueCat per their retention policies.

Children's Privacy

The App is not directed at children under 13. We do not knowingly collect personal information from children under 13.

Your Rights

You may:

• Delete your account and all associated data by contacting us
• Request your data by contacting us at the email below

Security

We use industry-standard encryption (HTTPS/TLS) for all data transmission. Authentication is handled by Firebase, which maintains SOC 2 compliance.

Changes to This Policy

We may update this policy from time to time. Changes will be posted here with an updated date.

Contact Us

If you have questions about this privacy policy:

Email: support@equalsmath.app
Website: equalsmath.app

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This privacy policy is effective as of March 2, 2026.