Privacy Policy for Linguana
Effective Date: December 2, 2025
Last Updated: December 2, 2025
Introduction
Linguana ("we", "our", or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard information when you use our mobile application.
Information We Collect
1. Audio Data (Microphone Permission)
Important: We take your audio privacy seriously. Your voice recordings are NEVER permanently stored or shared.
Purpose: Linguana uses your device's microphone for language learning features including:
- Speech recognition for pronunciation practice
- Voice-based exercises and interactions
- Real-time audio feedback for language learning
- Storage: Audio recordings are processed locally on your device and are NOT permanently stored
- Sharing: Audio data is NOT shared with third parties
- Control: You can revoke microphone permission at any time through your device settings
2. Personal Information
When you create an account, we may collect:
- Email address
- Name (if provided)
- Authentication credentials (via Firebase Authentication)
3. Usage Data
We automatically collect:
- App usage statistics
- Device information (model, OS version)
- App performance data
- Crash reports
4. Storage Access
- Purpose: To save learning progress, downloaded content, and user preferences
- Storage: Data is stored locally on your device
5. Advertising ID
- Purpose: To serve personalized advertisements through Google AdMob
- What is it: A unique identifier for advertising purposes assigned by Google Play Services
- How it's used: To show relevant ads and measure ad performance
- Control: You can reset or opt-out of personalized ads in your device settings (Settings → Google → Ads)
- Sharing: Shared only with Google AdMob for advertising purposes
How We Use Your Information
We use collected information to:
- Provide language learning features and services
- Improve app functionality and user experience
- Analyze app usage and performance
- Fix bugs and prevent crashes
- Send important app updates and notifications
Data Security
We implement appropriate technical and organizational measures to protect your personal information:
- Data encryption in transit and at rest
- Secure authentication via Firebase
- Regular security updates
- No permanent storage of audio recordings
Your Rights
You have the right to:
- Access your personal data
- Delete your account and associated data
- Revoke permissions (microphone, storage) at any time via device settings
- Opt-out of analytics tracking
- Request data export of your account information
Children's Privacy
Linguana is suitable for users of all ages. We do not knowingly collect personal information from children under 13 without parental consent. If you believe we have collected information from a child under 13, please contact us immediately.
Data Retention
- Audio recordings: Not permanently stored (processed in real-time only)
- Account data: Retained until you request account deletion
- Usage analytics: Aggregated data retained for service improvement
Changes to This Privacy Policy
We may update this Privacy Policy from time to time. We will notify you of any changes by:
- Posting the new Privacy Policy in the app
- Updating the "Last Updated" date
- Sending a notification for significant changes
Consent
By using Linguana, you consent to this Privacy Policy and agree to its terms.
Additional Information for Specific Permissions
RECORD_AUDIO Permission
- Why we need it: To enable speech recognition and pronunciation practice features
- When we use it: Only when you actively use voice-based learning features
- What we do: Process audio locally for immediate feedback
- What we DON'T do: Store, upload, or share your voice recordings
INTERNET Permission
- Why we need it: To sync learning progress, authenticate users, and load content
- Data transmitted: Encrypted authentication tokens, learning progress, app analytics
ACCESS_NETWORK_STATE Permission
- Why we need it: To check network connectivity before syncing data
READ_EXTERNAL_STORAGE Permission
- Why we need it: To access downloaded learning materials and content
- What we access: Only app-specific files and user-selected content
AD_ID Permission
- Why we need it: Required for apps using Google AdMob advertising on Android 13+
- What it does: Allows the app to access the Advertising ID for personalized ads
- Your control: You can reset your Advertising ID or opt-out of personalized ads in device settings
- Industry standard: This is a standard practice for all apps that show advertisements