Privacy Policy

1. Introduction

LinguaAI ("we," "us," or "our") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, store, and share information about you when you use the LinguaAI mobile application ("App") or visit our website ("Site"). By using the App or Site, you agree to the practices described in this Privacy Policy.

We encourage you to read this policy carefully. If you have any questions, please contact us using the details at the end of this document.

2. Information We Collect

We collect the following categories of information:

• Account Information: When you create an account, we collect your email address and name, provided through Clerk authentication. We may also store a profile image URL if you use a social login provider.
• Learning Preferences: Your selected difficulty level (Beginner, Intermediate, Advanced), chosen topics, and learning preferences you set within the App.
• Usage Data: Information about how you use the App, including lessons accessed, conversation frequency, session duration, and streak activity.
• Voice & Conversation Data: During an active practice conversation, and only after you have enabled AI consent, the App may send spoken audio, typed messages, speech transcripts, and conversation content to AI providers to provide tutoring, transcription, feedback, and audio. Spoken audio is sent to ElevenLabs for transcription; transcript and conversation text may be sent to Google Gemini for feedback in the legacy audio feature or to generate conversation titles. The App accesses your microphone only during an active conversation, never in the background. We store conversation records and, for the legacy audio feature, audio in Convex so you can use conversation history.
• Payment Information: Your subscription status, plan name, and the transaction identifiers returned by the relevant app store. We never receive or store your payment card details.
• Push Notification Tokens: If you allow notifications, we store the push token issued for your device along with its platform (iOS or Android), so we can send practice and streak reminders. You can revoke this at any time in your device settings.
• Usage Count Data: Records of daily AI conversation usage to enforce subscription plan limits.
• AI Conversation Context: When AI consent is enabled, the information sent to ElevenLabs for voice tutoring may include your account identifier, display name, and Spanish difficulty level, along with spoken audio, typed messages, transcripts, and conversation context. Transcript and conversation text—not raw microphone audio—may be sent to Google Gemini for legacy tutor feedback or to create conversation titles.
• Device Information: General device type and operating system version, collected automatically for performance and compatibility purposes.
• Diagnostic & Crash Data: When the App crashes or encounters an error, we collect a diagnostic report through our error-monitoring provider. This includes the error itself, the sequence of screens leading up to it, your device model and operating system version, and app performance and stability measurements. These reports include the identifier of the signed-in account, so we can tell which account encountered a problem. They never include your lesson content, conversation transcripts, or voice recordings, and they are never used for advertising.
• Account Deletion Requests: If you submit an account deletion request via the App or our Site, we record your email address, the request timestamp, and the status of the request.

3. How We Use Your Information

We use the information we collect to:

• Provide, operate, and improve the LinguaAI App and services;
• Authenticate your identity and manage your account;
• Process subscription payments and manage billing;
• Track your learning progress, streaks, and conversation history;
• Enforce daily usage limits based on your subscription plan;
• Personalize your learning experience (e.g., remembering your difficulty level and topic preferences);
• When you have enabled AI consent, send spoken audio and conversation information described above to ElevenLabs for voice tutoring, transcription, and audio, and send transcript and conversation text to Google Gemini for legacy tutor feedback or to generate conversation titles. The legacy audio feature sends audio to ElevenLabs, not Google Gemini;
• Send push notifications such as practice and streak reminders, where you have allowed them;
• Respond to support requests and account deletion requests;
• Detect, prevent, and address technical issues, fraud, or abuse;
• Diagnose crashes and errors, and monitor the App's performance and stability;
• Comply with applicable legal obligations.

We do not sell your personal information to third parties. We do not use your data for targeted advertising.

4. Third-Party Services

LinguaAI uses the following third-party services to operate the App. Each has its own privacy policy that governs how they handle your data:

• Clerk (clerk.com/privacy): Manages user authentication, account creation, and session management. Clerk processes your email address and name on our behalf.
• ElevenLabs (elevenlabs.io/privacy; Data Processing Addendum): When AI consent is enabled, ElevenLabs receives spoken audio, typed text, speech and conversation transcripts, conversation content, your account identifier, display name, and Spanish difficulty. It uses these inputs to provide voice tutoring, transcription, audio, and conversation history, including text-to-speech and audio for the legacy audio feature. Its processing and safeguards are governed by its applicable terms and DPA; the DPA applies to self-serve services under its terms.
• LiveKit (livekit.com/legal/privacy-policy): Provides the real-time audio transport for the voice tutor. When AI consent is enabled and a conversation is active, your spoken audio and the tutor’s replies travel over LiveKit’s WebRTC infrastructure to and from ElevenLabs. The session is established with a token issued by ElevenLabs, and LiveKit carries the audio only for the duration of that conversation. It is not used outside an active conversation.
• Convex (convex.dev/privacy): Our backend database and serverless infrastructure provider. It stores app data including your account details, learning progress, conversation records, usage records, and audio associated with the legacy audio feature.
• Google Gemini (Privacy Policy; Gemini API Terms; Data Processing Addendum): When AI consent is enabled, transcript and conversation text may be sent to generate conversation titles; the legacy audio feature may send transcripts and conversation context for feedback, but not raw microphone audio. The app also sends lesson and phrase text for translation and instructional content features. We use the Gemini API through an account with active billing. Google's terms for paid services state that prompts and responses are not used to improve its products, while allowing limited prompt/response safety logging. Processing, safeguards, and any retention are governed by the applicable terms and processing addendum; we do not state a specific retention period.
• Apple App Store (apple.com/legal/privacy): Processes subscription purchases and renewals. We receive only your subscription status and transaction identifiers — never your payment card details.
• Expo (expo.dev/privacy): Delivers our push notifications to your device through Apple's and Google's notification services, and distributes app updates. Expo processes your device push token on our behalf.
• Sentry (sentry.io/privacy): Our crash and error monitoring provider. When the App crashes or hits an error, Sentry receives the diagnostic report described above — the error, the screens leading to it, your device model and operating system version, app performance measurements, and the identifier of the signed-in account. Sentry does not receive your lesson content, conversation transcripts, or voice recordings. We do not use Sentry for advertising, and your data is not shared with advertising networks or data brokers.
• Google reCAPTCHA v3 (policies.google.com/privacy): Used on our website's account deletion form to protect against automated abuse. reCAPTCHA collects hardware and software information and sends it to Google for analysis. This processing is subject to Google's Privacy Policy.

5. Data Retention

LinguaAI retains your personal information for as long as your account is active or as needed to provide the App's services. Specifically:

• Account information is retained until your account is deleted;
• Conversation records, legacy audio stored in Convex, and learning progress are retained to provide conversation history and progress tracking;
• Payment records are retained as required by applicable financial regulations;
• Upon account deletion, your personal data will be deleted from LinguaAI's systems within 30 days after the deletion request is processed. Data already sent to third-party AI providers is handled under their applicable linked terms and processing agreements; we do not promise a specific provider retention period or that turning off AI consent deletes data already sent. Some data may be retained in anonymized, aggregated form for analytics purposes.

Turning AI consent off stops future AI provider calls but does not delete conversation or audio records already stored by LinguaAI in Convex, or data already sent to providers.

6. Your Rights & Choices

Depending on your location, you may have the following rights regarding your personal data:

• Access: Request a copy of the personal data we hold about you;
• Correction: Request that we correct inaccurate or incomplete data;
• Deletion: Request that we delete your account and associated personal data. You can submit a deletion request through the App's settings or via the account deletion form on our Site;
• Portability: Request a portable copy of your data in a structured, machine-readable format;
• Objection / Restriction: Object to or request restriction of certain processing activities where permitted by applicable law;
• AI Consent: AI consent is an account-level preference and is off by default, including when no preference has been saved. When it is off, the App blocks future calls to AI providers, so features that rely on those calls may be unavailable. You can change this preference in the App. Turning it off does not delete data already sent to providers or conversation and legacy audio records already stored by LinguaAI in Convex; request account deletion to delete your data from LinguaAI's systems under the process described above.
• Notifications: Turn push notifications off at any time in your device settings or in the App's notification preferences. Doing so does not affect your account or subscription.

To exercise any of these rights, please contact us at daleyshavon22@gmail.com. We will respond to your request within 30 days.

7. Children's Privacy

LinguaAI is not directed to children under the age of 13. We do not knowingly collect personal information from children under 13. If you believe a child under 13 has provided us with personal information, please contact us immediately at daleyshavon22@gmail.com and we will take steps to delete such information promptly.

8. Data Security

We implement appropriate technical and organizational security measures designed to protect your personal information against unauthorized access, alteration, disclosure, or destruction. These measures include encrypted data transmission (HTTPS), secure backend infrastructure provided by Convex, and access controls limiting who can view your data.

However, no method of transmission over the internet or electronic storage is 100% secure. While we strive to protect your data, we cannot guarantee its absolute security. In the event of a data breach affecting your rights and freedoms, we will notify you as required by applicable law.

9. International Data Transfers

LinguaAI operates using cloud infrastructure that may store and process your data in countries other than your own, including the United States. By using the App, you acknowledge and consent to the transfer of your information to these locations. We take steps to ensure that such transfers comply with applicable data protection laws and that your data receives an adequate level of protection.

10. Changes to This Privacy Policy

We may update this Privacy Policy from time to time to reflect changes in our data practices, the App's features, or applicable law. When we make material changes, we will update the "Last Updated" date at the top of this page. We encourage you to review this policy periodically. Your continued use of the App after any changes constitutes your acceptance of the revised Privacy Policy.

11. Contact Us

If you have any questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us at:

LinguaAI — Privacy
Email: daleyshavon22@gmail.com