No account
No name, email, phone, school, address or full date of birth is required.
Last updated: 2026-08-11
Privacy Policy — Taiwan English Lab
This App is local-first. Core learning does not require membership or sign-in, contains no advertising, and has no App-owned backend.
Summary
No tracking
No ads, behavioral analytics, attribution, social tracking or cross-app identity SDKs.
No voice collection
The shipping build does not request microphone permission and does not record, store or upload child voice.
On-device data
Learning settings, placement results, answers and mastery stay in device-local SQLite.
Data stored on the device
- Learning preferences
- Age band, daily goal minutes, audio speed and reduced-motion settings.
- Placement results
- Independent CEFR-aligned start-point estimates and placement history.
- Learning progress
- Items, skills, correctness, response times, spaced-review state and due times.
- Unfinished session cache
- A temporary local queue so practice can resume after the App is closed; portable backups deliberately omit this transient state.
This project does not collect those records on a server, because there is no App account or App-owned learning backend.
Backups and exports
Operating-system device backup
iOS/iPadOS or Android may include App data in Apple- or Google-managed device backup or transfer flows, depending on the user's system settings. Those services are controlled by the platform vendor. This App does not receive the user's Apple or Google account credentials.
Encrypted portable .eab backup
Users may export an AES-256-GCM encrypted .eab file and save it through the system share sheet to iCloud Drive, Google Drive, NAS or local storage. The passphrase is never uploaded or retained by NaviaWorks; a lost passphrase cannot be recovered by us.
Readable reports
Users may export a summary CSV, or a parent-gated unencrypted JSON / per-answer CSV. Readable reports do not include internal event UUIDs, session IDs, names, emails, location or raw audio. Because they are unencrypted, they should only be saved to trusted locations.
Permissions and network
- Core learning works offline.
- The intended Android product boundary does not require INTERNET permission for learning.
- The shipping product does not require microphone, location, contacts, photos or advertising-ID permissions for core learning.
- When the user explicitly exports or imports a file, selection and sharing are handled by the operating system.
Access, backup and deletion
Inside the App the user can view local progress, export an encrypted backup, export readable reports, or delete all local data after a parental confirmation. Because there is no App account or backend database, there is no server-side deletion request process.
If the user already saved backups or reports to iCloud Drive, Google Drive, NAS or another service, those copies must be deleted in that service by the user.
Children's data
The product defaults to data minimization: children do not need a real-world identity to use core features. There is no chat, social feed, leaderboard, ad personalization or third-party content marketplace, and children are not asked to publish personal content.
Educational framing independence
CEFR and Cambridge English qualification names are used only as ability-band references. The App is not a Cambridge product, is not endorsed by Cambridge, and does not use official Cambridge logos, shields, item banks, audio or Cambridge English Scale scores.
Policy changes
If a future version adds features that materially change data flows — such as cloud accounts, remote voice services, analytics SDKs or third-party backends — this policy, in-app notices, store privacy declarations and technical architecture must be updated first. The current design does not include those features.
Contact
Publisher / support: support@naviaworks.com (NaviaWorks / Alison Tech Studio).
GitHub project: silentposture/English-APP