1. Introduction
LinguaCoach AI Tutor ("App") is published by ElfAi Technologies ("we," "us," or "our"). This Privacy Policy explains what information is collected when you use LinguaCoach, how it is used, and how it is protected.
If you do not agree with this Privacy Policy, please do not use the App.
This policy applies specifically to LinguaCoach AI Tutor. For our company-wide privacy practices, see the ElfAi Technologies Privacy Policy.
2. Who We Are
- Operator: ElfAi Technologies
- App: LinguaCoach AI Tutor
- Website: https://www.elfai.dev
- Support: support@elfai.dev
3. Information We Collect
3.1 Account and profile data
If you create an account or sign in, we may collect your email address, display name, preferred learning language, and native language. This helps personalize your lessons and sync progress across devices.
3.2 Voice and audio data
When you use pronunciation practice or conversation features, you may provide voice recordings. Audio is processed to deliver pronunciation feedback and AI conversation responses. Voice data is used to provide the service and may be processed by our AI and speech service providers. We do not sell voice recordings.
3.3 Learning progress data
We collect information about your lessons, quiz results, streaks, skill levels, vocabulary progress, and in-app settings to personalize your learning path and show your progress.
3.4 Subscription and purchase data
Subscription transactions are managed through RevenueCat and processed by Apple. Payment information is handled by Apple and is not stored by us. We may receive subscription status and purchase metadata to verify your Pro entitlement.
3.5 Device and usage information
- Device type, operating system, and app version
- Crash and error logs (via platform and third-party SDKs)
- Basic usage analytics to improve app performance and reliability
- IP address and general location (country/region level) where required for service delivery
4. How We Use Information
We use information to:
- Provide AI tutoring, conversation practice, and pronunciation feedback
- Personalize lessons and track your learning progress
- Validate and manage LinguaCoach Pro subscriptions
- Provide customer support
- Maintain security and prevent abuse
- Improve reliability, accuracy, and performance of the App
- Comply with legal obligations
We do not sell your personal information.
5. Third-Party Services
LinguaCoach may use the following third-party services:
- Apple App Store — App distribution and payment processing
- RevenueCat — Subscription and purchase management
- AI and speech processing providers — To power conversation, translation, and pronunciation features
- Analytics and crash reporting providers — To monitor app stability and performance
Each provider has its own privacy policy governing how they handle data. We encourage you to review their policies.
6. Data Retention
We retain account and learning data for as long as your account is active or as needed to provide the service. You may request deletion of your account and associated data by contacting us. Subscription records retained by Apple or RevenueCat are subject to their respective retention policies.
7. Data Sharing
We share information only with the third-party service providers listed above, as necessary to operate the App, and when required by law or to protect our rights and users.
8. Children's Privacy
LinguaCoach is not directed at children under 13. We do not knowingly collect personal information from children under 13. If you believe a child has provided personal information, contact us at support@elfai.dev.
9. Your Rights
Depending on your location, you may have rights to access, correct, delete, or restrict processing of your personal information. To exercise a request, contact support@elfai.dev.
You can manage subscription settings through your Apple ID account.
10. International Transfers
Information may be processed in countries other than your country of residence through our service providers. By using the App, you understand that such transfers may occur.
11. Security
We use reasonable technical and organizational measures to protect information. However, no system can guarantee absolute security.
12. Changes to This Policy
We may update this Privacy Policy from time to time. If we make material changes, we will update the date above. Continued use of the App after changes become effective means the updated policy applies.
13. Contact
For privacy-related questions or requests: