Privacy Policy
This page explains how Bopomofo Typing ("this site") handles your information. In short: the site does not collect personal information that identifies you.
Last updated: July 16, 2026
Where your data is stored
Your learning data — word lists, practice results, and settings — is stored only in your browser (localStorage). It is never sent to our servers. To remove it, clear this site's data from your browser's settings using "Clear site data".
Analytics
We use Vercel Web Analytics to understand overall traffic. It measures anonymous page views without cookies and does not identify individual visitors.
Text-to-speech
Reading words and symbols aloud uses your browser's built-in speech synthesis. No audio data is sent anywhere for this feature.
No accounts
Using this site requires no sign-up or login. We never ask for your name, email address, or any other registration details.
Data sources
The dictionary and vocabulary used for practice are built from CC-CEDICT, the MOE Revised Mandarin Chinese Dictionary, and the HSK and TOCFL word lists. Each source is used in accordance with its own license.