Privacy Policy

Last Updated: April 2026

1. Introduction

Welcome to UseYu. We respect your privacy and are committed to protecting your personal data. This privacy policy informs you about how we handle your data when you visit our application.

2. Data We Collect

We may collect, use, store and transfer different kinds of personal data about you which we have grouped together as follows: Identity Data (username, first name, last name), Contact Data (email address), and Usage Data (your lesson progress, vocabulary mastery, and interaction timestamps).

3. How We Use Your Data

We use your data solely to provide and improve the UseYu service. Your lesson progression helps tailor the spaced repetition learning engine specifically to your needs.

4. Data Security

We have put in place appropriate security measures to prevent your personal data from being accidentally lost, used, or accessed in an unauthorized way, altered, or disclosed.

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Language & Script Guide

What is Mandarin?

Mandarin is the official language of Mainland China and Taiwan, and one of the official languages of Singapore. It is the most widely spoken Chinese dialect globally.

What is Cantonese?

Cantonese is the primary language spoken in Hong Kong, Macau, and the Guangdong province of China. It is also widely spoken in overseas Chinese communities.

What is Simplified Chinese?

Simplified Chinese characters were created to increase literacy rates by reducing the number of strokes. They are officially used in Mainland China and Singapore.

What is Traditional Chinese?

Traditional Chinese characters retain their historical shapes and strokes. They are primarily used in Taiwan, Hong Kong, and Macau.

Which should I choose?

If you plan to visit Mainland China or want to speak with the largest number of people, choose Mandarin + Simplified. If you are interested in Hong Kong culture, media, or visiting Macau, choose Cantonese + Traditional.

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