Tài khoản & Đồng bộ

Feature Preview / Dark Launch

Cross-device account synchronization is currently undergoing internal deployment. In the meantime, all your flashcard progress is stored privately and safely on your device via IndexedDB. You can export or import your data anytime from the Review settings.

Start Review Privacy Policy

Cloud Synchronization

Not signed in (Local storage only)

By default, you can review flashcards completely anonymously and offline without an account. Sign in with Google to sync your study progress seamlessly between your phone, tablet, and computer.

Privacy Commitment: We only store an opaque numeric identifier (sub) from Google. We NEVER store your email address, real name, avatar, or IP address.

Account Status

✓ Connected with Google Account

Last synced: --

Download Cloud Backup (JSON)

Danger Zone

Permanently erase your study history and cards from our Cloudflare D1 servers. This does not affect data on this local browser.