Effective date: May 7, 2026 Last updated: May 7, 2026

1. Introduction

This Privacy Policy applies to the "How to Write Han-Nom" app (hereinafter referred to as the "App") developed and published by HuthLab. We are committed to protecting users' privacy and will only collect and use data within the limits described below.

2. Data We DO NOT Collect

The App is designed to operate entirely offline on your device. We DO NOT:

• Collect personal information (name, email, phone number, address)
• Collect device identifiers (Device ID, Advertising ID)
• Track your geographic location
• Track usage behavior for advertising purposes
• Send your data to our servers
• Sharing data with third parties

3. Data stored on the device

Some data is stored LOCALLY on your device to support app features. This data DOES NOT leave your device:

• Favorites list: the Han-Nom characters you have marked (stored in an internal SQLite database)
• Search history: words you’ve recently looked up (stored locally)
• App settings: interface options, language (stored in SharedPreferences)
• Translation and character recognition models: downloaded once via Google ML Kit, stored on the device

You can delete all this data at any time by uninstalling the app.

4. Permissions

The app requires the following permissions: