We believe your data belongs to you. This page explains exactly what gets deleted, and gives you two ways to request it — the fastest of which takes seconds inside the app.
This action is permanent and cannot be undone. Once deleted, your account and all study progress — including vocabulary, kanji, and reading history — are gone forever. There is no recovery option. If you want to preserve your progress, note it before proceeding.
No data is retained, archived, or backed up after deletion. All records are removed immediately.
Always try the in-app method first — it is instant and requires no waiting.
Enter the email address you used to register. We will send you a verification link — click it to confirm your request. You will receive a final email once your request is processed.
Email sent from your registered address with subject "Data Deletion Request — Study Japanese"
We verify the request came from your registered email and send a one-click confirmation back to you
Reply to our email confirming you want to proceed — this is your final authorisation
All Firestore records, your Auth account, and any associated data are permanently removed. You receive a final confirmation email.