Last updated: March 2026

1. Introduction

Welcome to Lingui.

Your privacy is important to us. This Privacy Policy explains how we collect, use, and protect your information when you use the Lingui mobile application.

2. Information We Collect

We may collect the following types of data:

a) Account Information

• Anonymous Firebase user ID
• Profile name and avatar

b) Usage Data

• App interactions (quiz usage, streak, scores)
• Feature usage (languages selected, themes, etc.)

c) Device & Technical Data

• Device type
• OS version
• App version

d) Advertising Data

• Interaction with rewarded ads (Google AdMob)

3. How We Use Your Data

We use your data to: