Privacy Policy

주식회사 매쓰이터 (Mathiter Inc.) ("Mathiter," "we," "us," or "our") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use the Mathiter website (mathiter.com), mobile applications, and related services (collectively, the "Service").

By using the Service, you consent to the practices described in this Privacy Policy.

1.1 Information You Provide

• Account Information: Name, email address, password, age, and profile picture when you create an account.
• Payment Information: Billing details and payment method when you subscribe to a paid plan. Payment processing is handled by third-party providers; we do not store full credit card numbers.
• Learning Data: Your responses to practice problems, diagnostic test results, study progress, and interactions with AI coaching features.
• Communications: Messages you send to our support team, feedback, and survey responses.

1.2 Information Collected Automatically

• Device Information: Device type, operating system, browser type, IP address, device identifiers, and language settings.
• Usage Data: Pages visited, features used, time spent on the Service, navigation paths, and click patterns.
• Cookies: We use cookies and similar tracking technologies to collect this data. See Section 7 for details.

1.3 Information from Third Parties

If you sign in through a third-party service (such as Google or Apple), we may receive basic profile information from that service, such as your name and email address.

We use the information we collect to:

• Provide, operate, and maintain the Service, including personalized learning experiences and AI-powered features.
• Process your transactions and manage your subscription.
• Analyze learning patterns to improve our adaptive testing, study recommendations, and content quality.
• Communicate with you, including sending service updates, security alerts, and support responses.
• Generate aggregated, de-identified analytics to improve the Service and develop new features.
• Detect, prevent, and address fraud, abuse, and security issues.
• Comply with legal obligations.

Important: We do not use your personal learning data or AI interaction data to train third-party AI models.

We do not sell your personal information to third parties. We may share your information in the following circumstances:

• Service Providers: With trusted third-party vendors who help us operate the Service, such as hosting providers, payment processors, email delivery services, and analytics tools. These providers are contractually obligated to protect your data.
• Parent/Teacher Dashboard: If a parent or teacher account is linked to a student account, limited learning progress data (scores, study time, weak areas) may be shared with the linked parent or teacher.
• Legal Requirements: When required by law, in response to valid legal process, or to protect the rights, safety, or property of Mathiter, our users, or the public.
• Business Transfers: In connection with a merger, acquisition, or sale of assets, your information may be transferred as part of the transaction.

Mathiter is designed for students, including those under 18. We take children's privacy seriously.

• We do not knowingly collect personal information from children under 13 without verifiable parental consent.
• If we learn that we have collected personal information from a child under 13 without parental consent, we will promptly delete that information.
• Parents may contact us at any time to review, delete, or restrict the collection of their child's data.

If you believe a child has provided us with personal information without parental consent, please contact us at contact@mathiter.com.

We implement reasonable technical and organizational measures to protect your information against unauthorized access, loss, misuse, alteration, and destruction. These measures include encryption of data in transit, secure server infrastructure, and access controls.

However, no method of data transmission or storage is 100% secure. While we strive to protect your information, we cannot guarantee its absolute security.

We retain your personal information for as long as your account is active or as needed to provide the Service. We may also retain certain data as required by law or for legitimate business purposes, such as resolving disputes and enforcing our agreements.

You may request deletion of your account and associated data at any time by contacting us at contact@mathiter.com.

We use the following types of cookies:

• Essential Cookies: Required for the Service to function properly (e.g., authentication, security).
• Analytics Cookies: Help us understand how users interact with the Service so we can improve it.
• Preference Cookies: Remember your settings and language preferences.

You can manage cookie preferences through your browser settings. Disabling certain cookies may affect the functionality of the Service.

Depending on your location, you may have the following rights regarding your personal information:

• Access: Request a copy of the personal information we hold about you.
• Correction: Request correction of inaccurate or incomplete data.
• Deletion: Request deletion of your personal information, subject to legal obligations.
• Portability: Request your data in a machine-readable format.
• Opt-Out: Opt out of marketing communications at any time by clicking "unsubscribe" in any marketing email or contacting us.

To exercise any of these rights, please contact us at contact@mathiter.com.

Your information may be transferred to and processed in countries other than your country of residence, including countries that may have different data protection laws. We ensure appropriate safeguards are in place for such transfers in accordance with applicable law.

We may update this Privacy Policy from time to time. We will notify you of material changes by posting the updated policy on the Service and updating the "Effective Date" above. Your continued use of the Service after changes are posted constitutes your acceptance of the updated policy.

If you have questions or concerns about this Privacy Policy or our data practices, please contact us at:

주식회사 매쓰이터 (Mathiter Inc.)
Email: contact@mathiter.com
Website: https://mathiter.com