1. Information We Collect
Account data. A device identifier for guest accounts, and your name, email address and provider ID if you sign in with Google or Apple.
Learning content. Your text messages to tutors, voice-call transcripts, and the learning data they produce: level-test results, mission and practice outcomes, daily-challenge answers, corrected sentences and the weak points the tutor tracks for you.
Purchase data. Coin balance and grant/spend history, and store transaction records from Apple or Google (we never see your card number).
Device and usage data. App version, device model and OS, language and time zone, crash reports, push-notification token, and which screens and features you use.
2. How We Use It
To run the service and keep your progress across sessions and devices; to personalize lessons (placing you at a level, choosing missions and challenges, bringing back mistakes for review); to process coins and purchases; to send push notifications you opt into, such as a tutor's daily message; to keep the service safe and prevent abuse; to measure and improve tutor quality and the app; and to meet legal obligations. We do not sell your personal data.
3. Conversations and Voice Calls
Your chats and call transcripts are stored so your tutor can remember previous sessions, give you feedback and build your review list. Voice audio is streamed to our AI provider in real time to produce the tutor's reply and a transcript; we do not keep the audio as a long-term recording. Conversation text may be reviewed by our team, in de-identified form wherever possible, to fix tutor errors and improve teaching quality. Please do not share sensitive personal information such as health, financial or government-ID details with a tutor.
4. Legal Basis for Processing (GDPR / UK GDPR)
We process personal data to perform our contract with you (providing the tutoring service), on the basis of our legitimate interests (service quality, security, analytics), with your consent where required (marketing notifications, optional analytics), and to comply with legal obligations (purchase records, lawful requests).
5. Who We Share Data With
We share the minimum necessary data with processors under data-processing agreements: AI model providers that generate tutor responses and process conversations and voice (such as Anthropic, OpenAI, Google and xAI); cloud hosting and storage providers; Google Firebase for analytics, crash reporting and push notifications; and Apple App Store and Google Play for purchases. We may also disclose data when required by law or to protect users, and to a successor if our business is transferred, with notice to you.
6. Data Retention and Deletion
Your data is kept while your account is active so that progress, reviews and coins carry over. When you delete your account from Settings or by email, it is held for 30 days so you can recover it, then personal data is permanently deleted, except records we must keep by law (for example purchase transactions) and de-identified statistics. See the account deletion page for the steps.
7. International Data Transfers
Our servers and providers process data in the United States, the Republic of Korea and other countries. Where data leaves the European Economic Area or the United Kingdom we rely on Standard Contractual Clauses and equivalent safeguards.
8. Analytics, Cookies and Advertising
The app uses Firebase Analytics to understand feature usage and crashes. The website k.tutorcall.ai uses essential cookies and, where enabled, Google Analytics, Google Ads and Meta Pixel to measure visits and app installs from our campaigns; store links carry campaign parameters for the same purpose. You can limit ad tracking in your device settings and block cookies in your browser.
9. Your Rights
Depending on where you live, you may have the right to access, correct, delete or export your personal data, to restrict or object to processing, to withdraw consent, and to complain to a supervisory authority. You can delete your account and data from Settings in the app; for other requests email support@k.tutorcall.ai and we will respond within 30 days.
10. California Privacy Rights
If you are a California resident, the CCPA/CPRA gives you the right to know what personal information we collect and how it is used and shared, to delete it, to correct it, and not to be discriminated against for exercising these rights. We do not sell or share personal information for cross-context behavioral advertising. Requests: support@k.tutorcall.ai.
11. Children
K-TutorCall is for users aged 14 and over, and users under 18 need a parent's or guardian's consent. We do not knowingly collect personal information from children under 14. If you believe a child under 14 has used the service, contact us and we will delete the account and its data.
12. Security
We protect your data with encryption in transit and at rest, access controls, monitoring and incident-response procedures. No system is perfectly secure; if a breach affects you we will notify you and regulators as required by law.
13. Contact and Changes
Privacy questions and requests: support@k.tutorcall.ai. We may update this policy; material changes will be announced in the app or on k.tutorcall.ai before they take effect.