Garthmath Privacy Policy

Garthmath Privacy Policy

Last Updated: March 31, 2026

This Privacy Policy (“Policy”) applies to Garthmath, an online learning tool, as well as related contents, tools, features and functionality (together, the “Services”) provided by the developer - Wang Dong (hereinafter referred to as “we”, “our” or “us”). This Policy is hereby formulated by us in accordance with applicable laws to protect personal information of users (“you” or “your”).

1. Scope and Consent This Policy sets out why, how and what personal information we collect, use, store, process, share, transfer and publicly disclose about you, the information security protection measures we take, and the rights we honor for your access, update, deletion and control of your personal information. Please read this Policy in combination with Garthmath Terms of Use. If you do not agree to this Policy, you shall stop using Garthmath and/or our Services.

We reserve the right to amend this Policy at any time, and we encourage you to regularly review this Policy to get the latest revision.

By accessing and/or using our Services, you confirm that you are either an adult at or over the age of majority in your jurisdiction, or a child under your parent or legal guardian’s supervision, and that you have the right, authority, capacity or consent to access and/or use our Services and agree to abide by this Policy.

2. Collection and Use of User Information We will collect personal information from you and/or your child for the purpose hereof and in line with the principles of legality, legitimacy, necessity and transparency.

2.1 Personal information you provide during use of Garthmath By registering an account with Garthmath, or accessing or using Garthmath (with or without a user account), you consent to provide us necessary information including your personal information. User personal information that we may collect include, but is not limited to:

• email address and username;

• uploaded pictures, photos or input text (for homework solving);

• purchase and subscription records;

• device information and log information.

The following describes the extent to which your personal information may be required and collected:

• 2.1.1 Registration: You may log in with your current Apple or Google account. Through this link, we only collect your username, email, and profile picture from the third-party account.

• 2.1.2 Answer-Searching: When you use the “Answer-Searching” feature, you can upload a picture from your album, use your camera, or input your question in text format. If you do not allow access to your camera/storage or text inputs, we cannot offer this core feature.

• 2.1.3 Online Payment (App Store Only): We offer value-added subscribed Services exclusively through Apple App Store In-App Purchases. All payments are processed entirely by Apple. We do not collect, process, or store your credit card details or billing address. We only receive anonymized transaction receipts, subscription status, and purchase IDs from Apple to grant you access to premium features.

2.2 User Information Automatically Collected (Analytics and Tracking) To safeguard the security of your account, evaluate product performance, and measure the effectiveness of our user acquisition campaigns, we integrate third-party analytics and attribution tools (specifically Firebase and AppsFlyer). Through these integrations, we automatically collect:

• Device and Usage Information: Device model, iOS version, IP address, and network logs.

• Analytics and Attribution Data: Installation source, feature interaction events, session duration, and device identifiers used strictly for advertising attribution and product optimization.

2.3 Engagement with Third-Party AI Service Providers To deliver our core AI-powered homework assistance features—including text extraction from images and real-time step-by-step solutions—we strictly partner with Google LLC for our Artificial Intelligence capabilities.

• Google LLC (Gemini Model):

  • Shared Data: Text inputs, uploaded homework images/photos, and necessary interaction context.

  • Purpose: To process natural language queries, extract text from images, analyze complex questions, and generate high-quality educational explanations.

• AI Training Disclaimer: We do not use your personal study data, uploaded photos, or text inputs to train third-party AI models. Data transmitted to Google is strictly used for real-time output generation (providing homework solutions) and is not retained by them to train their foundational models.

3. Cookies and Similar Technologies We use strictly necessary technologies (like locally stored tokens) to enable you to move around in Garthmath and use its features, such as remembering your log-in status. Without these, certain services you ask for cannot be provided.

4. Reasons for Collection, Processing, and Use of User Information We use your information collected by Garthmath to:

• Provide, maintain, and improve our Services;

• Respond to your questions and customer support requests;

• Verify your subscription status via Apple;

• Prevent, detect, and investigate fraud, security breaches, and potentially illegal activities.

5. Share, Transfer and Disclosure of User Information We do not sell or rent your personal information to third parties. We will not share user personal information with any third party, unless under the following circumstances:

• 5.1 Service Providers and Analytics Partners: We share necessary data with trusted technical service contractors who collaborate with us to support our Services. This includes our AI provider (Google LLC) for content generation, and our analytics/attribution partners (Firebase and AppsFlyer) to measure product growth and operational health. They are contractually obligated to protect your data in compliance with this Policy and applicable laws.

• 5.2 Legal Obligations: It is related to the performance of our obligations required by applicable laws (e.g., in response to court orders).

• 5.3 Apple Refund Requests & Anti-Fraud: If you request a refund for an In-App Purchase or auto-renewable subscription through the Apple App Store, we may share information about your use or consumption of the purchased Services with Apple. This information is provided solely to assist Apple in reviewing and making a decision on your refund request, in accordance with App Store policies, and to prevent fraudulent refund activities. The consumption information may include usage duration or accessed features associated with the purchase.

6. Management of User Information

• Access and Correction: You have the right to access and update your user information at any time within the App's profile settings.

• Account Deletion: You may delete your Garthmath account and associated data by navigating to “Settings” – “Delete My Account” within the application, or by contacting us directly. Deletion of your account is irreversible.

• Respond to User Requests: For any data-related requests, we will respond as soon as possible and generally no more than 30 days from receipt of your request and verification of your identity.

7. Retention and Security of User Information We will retain your personal information for no longer than is necessary for the purposes stated herein. We use appropriate organizational, technical, and physical safeguards to protect user information. However, please be reminded that no method of transmission over the Internet or method of electronic storage is 100% secure.

8. International Transfer of User Information Your personal information may be transferred and processed outside of your local jurisdiction (e.g., data processed by US-based AI service providers). We will endeavor to ensure appropriate safeguards so that user information will remain protected in accordance with this Policy.

9. Protection of Child Users’ Personal Information If you are a parent or guardian and discover that your child under the applicable age of consent has provided us with personal information without your consent, please contact us immediately so we can take steps to remove such data and terminate the account.

10. Contact Us If you have any questions, concerns, or requests regarding your user privacy or this Policy, please contact us at:

Developer: Wang Dong Email: fancyapp2023@163.com