Last updated: October 2026
This page explains how to delete your BitVocab account (operated by an individual developer) and the data associated with it. Your BitVocab account is shared across the BitVocab website, the iOS and Android apps, the Chrome extension (BitVocab Highlighter), and the desktop app, so deleting it removes your account everywhere.
The button opens your account page. You will be asked to sign in first (signing in confirms it is your account); no app installation is required.
In the BitVocab app (iOS / Android): open the My tab (我的 / マイページ) → Account (账号 / 帳號 / アカウント), scroll to the bottom, tap Delete account and confirm.
When you request deletion, the following account data is permanently removed: your username, password, linked email address, Google / Apple sign-in association, mastered-words list, word lists, word notes, favorite reading materials, image text-extraction history (including thumbnails and stored images), listening-practice lists, learning progress and records, feedback messages, Premium and subscription records, and app preferences.
Subscriptions: deleting your account does not cancel a Premium subscription purchased through the App Store or Google Play. Please cancel it in your store's subscription settings (iPhone: Settings → your name → Subscriptions; Android: Google Play → Payments & subscriptions → Subscriptions).
When you delete your account, it is deactivated immediately and all associated data is permanently deleted after a 30-day grace period.
If you have forgotten your password, you can reset it via bitvocab.com. If you still cannot access your account, email support@bitvocab.com from your registered email address and we will process the deletion request for you.
For any questions about account or data deletion, email support@bitvocab.com.
See also our Privacy Policy.