Privacy Policy

We collect minimal data to make Swift English Vocabulary work. Here's exactly what we store:

• Email address — for account recovery and authentication. If you sign in with Apple, your email and name are provided by Apple for account creation. Apple may provide a private relay email address.
• Display name — to personalize your experience
• Learning data — words you've studied, review statistics, study streaks, and achievement progress
• Child profiles — name and avatar for parent-managed multi-profile accounts
• Optional PIN hash — if you enable PIN protection for child profiles (stored securely, not readable by us)
• APNs device token — if you enable push notifications, your Apple Push Notification service token is collected and shared with Crisp solely for delivering support chat notifications
• FCM device token — stored in Firestore, used by Firebase Cloud Messaging for push notifications (updates, reminders). One token per account.
• Feature requests — title, description, and display name visible to all users. Votes recorded with your user ID.
• AI Tutor conversations — if you give explicit consent, chat messages with the AI Tutor are stored in Firestore under your account. Conversations include your messages, AI responses, and contextual learning data. The following data is shared with Anthropic to generate tutor responses: chat messages and conversation history, words being studied (word, definition, example, phonetics), learning statistics (total words, mastered words, streak), and your translation language preference. No data is shared until you explicitly agree.
• AI data sharing consent — your consent status and the date you gave consent are stored in your user profile

Swift English Vocabulary is designed to respect your privacy. We explicitly do not:

• Track behavior — we don't track user behavior, session duration, or feature usage for marketing or analytics purposes. We do collect crash reports and basic diagnostic data via Crashlytics for app stability.
• Show ads — Swift English Vocabulary is ad-free
• Track location — we never request or store GPS data
• Device tracking — we don't collect device identifiers for tracking or advertising. Crashlytics collects device model and OS version for crash diagnostics only. An APNs device token is shared with Crisp for support chat push notifications; an FCM device token is used for app push notifications via Firebase Cloud Messaging.

You have control over how your data is used:

• AI Tutor consent — before any data is shared with Anthropic, you must explicitly agree through an in-app data sharing disclosure. The AI Tutor is not accessible until you consent.
• Revoke consent — you can revoke your AI data sharing consent at any time from your profile settings. Revoking consent permanently deletes your entire chat history and disables access to the AI Tutor.
• Account deletion — you can delete your account at any time from the app settings, which permanently removes all your data

Swift English Vocabulary uses Apple's on-device translation framework to provide word translations. This means:

• Translation happens entirely on your device using Apple's built-in models
• No translation data is sent to external servers or third parties
• Your words and translations remain private to your device

Your account and learning data are stored on Firebase, which uses Google Cloud infrastructure. Firebase provides enterprise-grade security including encryption in transit and at rest.

Data is backed by Google's data centers with automatic redundancy and disaster recovery.

You can delete your account at any time directly from the app settings. When you do:

• Your entire account and all data are permanently deleted
• All child profiles linked to your account are also deleted
• Deletion is immediate and cannot be undone

Swift English Vocabulary supports multi-profile accounts so parents can manage learning for their children. Here's how it works:

• Child profiles are created and managed entirely by a parent account
• Child profiles store only a name and avatar (no email or other personal information)
• Swift English Vocabulary does not directly collect data from children or require consent from children
• Crash diagnostics (crash reports, device model, OS version) are automatically collected for all profiles including children's, but contain no personal data beyond what is already disclosed above
• All data is stored under the parent's account and is managed by the parent
• Feature request submissions are not available for child profiles. FCM token and push notification topics apply at the account level, not per child profile.
• AI Tutor conversations from child profiles are sent to Anthropic's API in the same manner as adult profiles. The parent's consent (given via the parent account) applies to all child profiles under that account.

For general support, reach out via the in-app Crisp chat. For formal or legal inquiries, contact us at:

mathias.ovieve@gmail.com