Privacy Policy

Privacy Policy

Effective date: July 7, 2026

LingoCrush is an AI-based vocabulary and grammar learning app. We process only the information needed to provide core features such as vocabulary creation, OCR, AI analysis, deck sharing, reminders, and referral token management.

1. Information We Collect

• App user identifier, operating system type, referral code, token balance, and referral participation status for user setup and token rewards.
• Vocabulary decks, words, meanings, pronunciations, examples, grammar notes, study progress, wrong-answer records, and reminder settings stored on your device.
• Images or text you choose to submit for OCR and AI vocabulary or grammar analysis.
• Deck data you choose to share, including the shared deck content and generated share ID.
• Basic technical data such as request time, server response status, and security verification data used to protect the service.

2. How We Use Information

• To create and manage vocabulary decks, study records, review queues, and learning statistics.
• To extract text from images and generate AI-powered words, meanings, pronunciations, examples, and grammar notes.
• To sync token counts, process referral rewards, and prevent duplicate or invalid token use.
• To let users share and import vocabulary decks through share links.
• To improve app reliability, prevent abuse, and respond to support requests.

3. AI and Third-Party Processing

When you use AI features, selected images, extracted text, or pasted text may be sent to an AI service provider such as Google Gemini to generate vocabulary and grammar results. Do not submit sensitive personal information, confidential documents, or content you do not have the right to process.

4. Storage and Retention

Most learning data is stored locally on your device. Server-side data such as user identifiers, token information, referral records, and shared deck data is retained only as long as needed to provide the service, comply with legal obligations, prevent abuse, or resolve disputes. Shared deck links may expire or be deleted according to service settings.

5. Sharing of Information

We do not sell personal information. Information may be shared only with service providers needed to operate the app, when you intentionally share a deck, when required by law, or when necessary to protect users and the service.

6. Permissions

The app may request camera, photo, notification, or related device permissions only when needed for features such as capturing text, selecting images, and sending study reminders. You can change permissions in your device settings.

7. Your Choices

You can delete local learning data by deleting decks or removing the app. You can stop using AI, sharing, reminders, or referral features at any time. For questions about server-side data, contact us through the support channel listed on the app store page or official service page.

8. Children

The app is intended for general language learning. If a child uses the app, a parent or guardian should supervise use and avoid submitting personal or sensitive information.

9. Changes to This Policy

We may update this policy when features, legal requirements, or service practices change. The updated version will be posted with a new effective date.

10. Privacy Contact