How can we help?
Browse the common questions below or send us an email — we usually reply within 24 hours.
Frequently asked questions
How do I save a word with the extension?
Highlight a sentence and click Set context. Then click a single word to save it, or select two or more words and click Save phrase. The original sentence stays attached as context. Press Esc or Done when you are finished.
Why is the extension asking me to sign in again?
Your session may have expired. Open the extension popup and sign in with email/password or Google. If it keeps happening, try signing out of the web app, then sign in again from the extension.
My vocabulary calendar is not showing past activity.
Go to Settings → Data → "Sync historical stats" and click "Sync now". This rebuilds your calendar from all existing words and reviews.
Can I use WordNote without the browser extension?
Yes. You can add words manually from the library page inside the web app at wordnote.id.vn/app.
How does spaced repetition work?
After you save a word, our algorithm schedules it for review at increasing intervals — 1 day, 3 days, 7 days, and so on. Each correct answer pushes the next review further out. This mirrors how long-term memory works.
How do I delete my account and data?
Email us at sonha2002.12@gmail.com with the subject "Delete my account". We will delete all your data within 30 days.