Privacy policy

1. Who is responsible

Talkverse is developed by Tony Hoang (Trần Văn Hoàng). This policy covers the Talkverse English-learning app and this information website.

2. Information processed

• Account: Apple or Google identifier, email when provided with your permission, sign-in sessions and device information needed for authentication.
• Learning profile: display name, goals, interests, self-selected level and preferences.
• Learning data: attempts, responses, progress, hints used, saved items, review schedule and language evidence. Activity rewards are recorded separately.
• Microphone: used only when you choose speaking practice and grant permission; see the voice section.
• Infrastructure processes technical request information, such as IP addresses, to operate and protect the service.

Version 1 is free, has no in-app purchases and collects no payment data.

3. Why we use information

We use data to authenticate you, save and synchronize learning, resume sessions, schedule review, show progress, process deletion and troubleshoot issues. We do not sell data or use learning data for tracking advertising.

4. Age requirements

Version 1 is intended for adults and working professionals and is not intended for children under 13. Child profiles and parental features are not offered in this version. If you believe data about a child under 13 has entered the service, see the contact section to request action when the support channel is available.

5. Voice and AI

AI conversations and AI scoring are disabled in version 1. English speech recognition runs on-device when supported; unsupported devices do not silently fall back to Apple server recognition. You can continue by selecting a sentence. Recognition results used in an attempt may be synchronized as a response.

Temporary recognition recordings are cleaned up after use. Version 1 speaking practice does not send audio to AI providers. For server recordings already present from earlier test versions, the current retention mechanism is at most 30 days. The “Keep recordings” preference is currently local only and does not control server retention. Use “Delete all recordings” to request deletion.

6. Providers and sharing

Cloudflare provides servers, databases and file storage (Workers, D1, R2). Apple or Google handles sign-in when you choose that provider. The App Store distributes the app under Apple’s own policies. Version 1 has no tracking advertising providers. Information may be disclosed in response to applicable lawful requests.

7. Storage and protection

Learning data is stored on Cloudflare infrastructure, with necessary local copies on your device. Server connections use HTTPS and access is account-based. Global infrastructure may process data outside Vietnam; we do not promise storage in a single country. No system guarantees absolute security.

8. Retention

Account and learning data are retained to support your account until you request deletion. Archiving older learning events does not mean deleting them. Voice retention is described in section 5. We have not published a manual request processing deadline; sending an email is not confirmation of deletion.

9. Access, export and deletion

In Profile › Settings › Account & data, choose “Export learning data” (Xuất dữ liệu học) to share a JSON file. It contains the profile, attempts and saved items on your device; it is not a complete server-data export.

Choose “Delete account” (Xóa tài khoản), enter XÓA and confirm to delete your account, profiles, learning data and recordings. Internet access is required; a server error does not mean deletion succeeded. See the deletion guide. You can also revoke microphone permission in your operating-system settings.

10. Website and local storage

This website sets no analytics or advertising cookies and has no data-collection forms. Fonts and images are served locally. Cloudflare still processes access requests. The app keeps downloaded packs, preferences and pending learning events on-device for offline use.

11. Policy changes

The update date appears above. We will update this policy when new features change data use and handle required permissions or consent before using those features.

12. Contact

Planned contact: support@talkverse.app — pending confirmation by Hoang; this is not yet a verified support channel. This page will be updated when contact is available. Do not send passwords, sign-in codes or sensitive recordings.