Delete your learning data (without deleting your account)
Last updated: November 14, 2026
This page explains how to delete the learning data stored by SAT Vocab Boost (「SAT 單字衝刺」) without deleting your account, which types of data are deleted or kept, and how long we retain them. The app is published by CORETRIX TECHNOLOGY LIMITED.
Delete your learning data in the app
The whole flow is: App → 設定 (Settings) → 資料與隱私 (Data & privacy) → 重設學習資料 (Reset learning data) → confirm.
- 1 Open the SAT Vocab Boost app.
- 2 Go to 設定 (Settings).
- 3 Open 資料與隱私 (Data & privacy).
- 4 Tap 重設學習資料 (Reset learning data).
- 5 Confirm the reset.
This works without deleting your account and without contacting support. If you are signed in, the reset clears both the copy on your device and the copy synced to our servers, and it takes effect immediately. Your account stays exactly as it is.
What is deleted
When you confirm the reset, these types of data are deleted:
- 學習進度 / browsed words: the vocabulary you have browsed.
- 錯題紀錄 / wrong-word history: the words you answered incorrectly.
- 複習清單 / review list: the words you marked for review.
- 學習計畫與目標 / study plan and daily target: your study plan and daily goal.
- App settings tied to the learning data: the app settings that belong to that learning data.
- Anonymous (not signed in) users: the same data on the device. There is no server copy to remove.
The reset cannot be undone. The vocabulary library itself is not affected.
What is kept
- Your account itself. Your email address (for username/password accounts), your sign-in method (Apple, Google, WeChat, or password), and your registration date are not deleted. You can keep using the app with the same account.
- The daily word email subscription. The reset does not change it. To stop the emails, turn it off separately at 設定 (Settings) → 加值服務 (Add-on services) → 每日單字郵件 (Daily word email).
- Purchase records (purchases). We keep purchase records to meet tax and refund-handling requirements.
- Server-side backup copies. Our encrypted database backups are rotated, and your data disappears completely from that rotation within 30 days. This 30-day backup rotation is the only additional retention period on our side.
Also want to delete your account?
Deleting the account itself — which also removes your email address, sign-in methods, activity records, and purchase records from our servers — is a separate action. For the full flow, see Delete your account and data.
Contact us
If you cannot use the in-app reset, email us and we will help.
CORETRIX TECHNOLOGY LIMITED