Privacy Policy

Last Updated: October 13, 2026

This Privacy Policy explains how APPOPAI LIMITED ("APPOPAI", "we", "us", or "our") collects, uses, shares, and otherwise processes information when you use the LingoParent mobile application and related services (the "Service").

By downloading, accessing, or using the Service, you acknowledge that you have read, understood, and agree to this Privacy Policy and our Terms of use. If you do not agree, please do not use the Service.

1. Responsible Party

APPOPAI LIMITED is responsible for personal data collected through the Service.
Contact Email: contact@lingoparent.com

2. Service Description

LingoParent is a parent-guided language learning application. It uses photo recognition, speech input, and AI-assisted content generation to create learning materials and save family learning records. The Service is available through supported app stores, and use is subject to the applicable app store terms.

3. Information We Collect

3.1 Information You Provide

• Account Information: When you register or sign in, we may collect your email address, name, and authentication credentials.
• User Content: Photos, image crops or object cutouts, recognized objects, speech-to-text results, generated learning content, saved learning records, sticker collections, and other content you create or upload. We process submitted photos solely for real-world object identification and generating vocabulary learning stickers. We do not extract, analyze, or store any facial recognition geometries, facial templates, or biometric data from submitted photos, nor are private photos used to train public AI models.
• Preferences: Language settings, audio speed, and learning preferences.
• Support & Feedback: Information you provide when contacting us for support or sending feedback.

3.2 Information Collected Automatically

• Device Information: Device model, operating system version, unique device identifiers, language settings, time zone, client type, and app version.
• Usage Data: Interactions with the app, feature and subscription flow events, crash reports, diagnostic information, and performance logs.
• Location Data: We do not collect precise real-time location data. We do not treat language setting or time zone alone as precise location data.
• Security and Integrity Signals: Authentication tokens, request metadata, application or device attestation signals, and other integrity or anti-abuse indicators used to protect the Service against fraud, abuse, and unauthorized access.

When the app communicates with our backend, it may transmit technical request headers such as client type, app version, language setting, and time zone. We use these values for compatibility, request processing, localization, troubleshooting, logging, and service reliability.

3.3 Third-Party Sources

• Sign-In Services: If you sign in through Google or Apple, we receive authentication tokens and basic profile information permitted by your settings.
• Payment Processors: We do not collect or store your full payment card information. The applicable app store processes payments and provides transaction receipts and subscription status to RevenueCat and to us so that we can validate and manage your subscription.

4. How We Use Information

• Service Provision: To operate the app, recognize submitted photos, generate learning content, save or synchronize learning records, and manage accounts.
• Personalization: To tailor learning content, sentence complexity, and audio speed to your chosen preferences.
• Improvement and Diagnostics: To analyze aggregate usage, measure feature and subscription flow performance, detect crashes and errors, and improve the reliability of the Service.
• Communication: To send service updates, security alerts, and support messages.
• Security: To authenticate users, verify supported app requests, and detect and prevent fraud, abuse, automated misuse, or security incidents.
• Localization and Time Handling: To process language and time zone settings for localized content, compatibility checks, and operational troubleshooting.

5. Subscriptions and Payments

LingoParent offers both free and Pro access.

• Free Access: Provides limited access to core features as shown in the app.
• Pro Subscription: Unlocks the subscription benefits shown at purchase. Subscriptions are managed through your app store account.

You can manage or cancel your subscription at any time through your device's app-store account settings:

• iOS (Apple App Store): Open device Settings > [Your Name / Apple Account] > Subscriptions.
• Android (Google Play): Visit Google Play Subscriptions or open the Google Play Store app and tap Profile > Payments & subscriptions > Subscriptions.

Refunds are subject to the policies of the applicable app store. Deleting the app or your LingoParent account does not automatically cancel an app-store subscription.

6. Sharing and Disclosure

We do not sell your personal information. We may share data with trusted service providers that help us operate the Service:

• Cloud Storage, Hosting, and AI Processing: To store submitted photos and process recognition and generated learning content.
• Analytics & Diagnostics: Google Firebase Analytics and Firebase Crashlytics, to understand app usage and diagnose crashes, errors, and performance issues in release builds.
• Security & App Integrity: Google Firebase App Check and related attestation providers, where enabled, to help verify supported instances of the app and protect against abuse, fraud, and unauthorized access.
• Authentication Providers: Google Sign-In and Sign in with Apple, when you choose to use those methods.
• Subscription Management: RevenueCat, to validate receipts, manage subscription status, process subscription events, and help keep Pro access synchronized.
• Device Speech Recognition: Your device's speech recognition provider, when you choose to use speech input. That provider may process audio under its own terms and privacy practices.

We may also disclose information where required by law or when necessary to protect our rights, users, or the safety and integrity of the Service.

6a. Analytics & Diagnostics

We use analytics and diagnostics data to understand how the Service is used, measure feature and subscription performance, detect crashes, and maintain reliability. This data may include app interactions, device and operating system information, client type, app version, language setting, time zone, crash traces, diagnostic logs, purchase flow events, and subscription status. We do not use this data to sell personal information or for cross-context behavioral advertising.

6b. International Data Transfers

Our Service is operated globally, and information may be transferred to, stored, and processed in countries other than your own, where data protection laws may differ. We use appropriate safeguards for such transfers where required by law.

7. Data Retention and Deletion

We retain your information only for as long as your account is active, as needed to provide the Service, or to fulfill legal, accounting, tax, security, or dispute-resolution obligations.

How to Delete Your Account and Associated Data:

• In-App Deletion: You can permanently delete your account and personal data at any time from within the app by going to Profile > Settings > Delete Account.
• Web / Email Deletion Request (No App Access Required): You may also request account and data deletion without reinstalling or opening the app by sending an email from your registered email address to contact@lingoparent.com with the subject line "Account Deletion Request".

Deletion Scope and Timeline: Upon receiving and verifying your request, we will permanently remove or anonymize your personal data from our active databases within 30 days. This deletion includes your login credentials, exploration history, custom sticker collections, and saved learning images. Limited transactional receipts and security audit logs may be retained only for as long as required by applicable tax, commercial laws, or active legal compliance obligations.

8. Children's Privacy

LingoParent is directed to parents, legal guardians, and adults. We do not knowingly collect personally identifiable information from children under the age of 13 (or under 16 in the European Union). If you believe that a child has provided us with personal information without parental consent, please contact us at contact@lingoparent.com, and we will promptly take steps to delete such information.

9. Changes to This Policy

We may update this Privacy Policy from time to time. We will post the new policy on this page and update the "Last Updated" date. Continued use of the Service after an update takes effect constitutes acceptance of the updated policy, where permitted by law.

10. Contact Us

For questions about this Privacy Policy, contact us at contact@lingoparent.com.

11. Notice to Residents of the European Economic Area (EEA) and the UK

If you are a resident of the EEA or UK, you may have rights under the GDPR or UK GDPR. APPOPAI LIMITED acts as the controller of your personal data.

Legal Basis for Processing: We process personal data where we have a legal basis, including consent, performance of a contract with you, compliance with legal obligations, and legitimate interests such as improving and securing the Service where those interests are not overridden by your rights.

Your Rights: Subject to applicable law, you may request access to, correction or deletion of, restriction of, objection to, or portability of your personal data, and you may withdraw consent where processing is based on consent. To exercise these rights, contact contact@lingoparent.com. You may also complain to your local data protection authority.

12. Notice to California Residents (CCPA/CPRA)

California residents may have rights to know, access, correct, and delete personal information, and to receive equal service when exercising those rights, subject to applicable exceptions. We may collect identifiers, commercial information such as subscription history, and internet or other electronic network activity information. We disclose these categories to service providers for business purposes.

We do not sell or share personal information for cross-context behavioral advertising. To submit a verifiable consumer request, contact contact@lingoparent.com. We may verify your request by asking you to confirm information related to your account or recent interactions with the Service.