You are offline.

Previously cached study surfaces remain available. Reconnect to sync answers and load new material.

What works offline

Cached questions, your last review queue, course taxonomy, and FSRS intervals are available from the service worker cache.

Loading new adaptive questions, submitting answers for credit, syncing FSRS grades, and viewing live progress stats all require a connection.

Answers queued while offline will sync automatically. Your streak is preserved as long as you practice at least one cached question per day.