Duvance Privacy Policy

Last updated: 2026-03-31

What Duvance Is

Duvance is a cryptocurrency market simulation app. It does not offer real-money trading, custody, brokerage, or investment advisory services.

Data We Collect

We may process your name, email address, and user ID (UID) for account creation and sign-in. We also store app data such as virtual balance, portfolio, transaction history, achievements, investing style, risk level, leaderboard appearance, and ad or analysis entitlement data.

Visible Data

Your display name and in-app performance may be shown to other users in leaderboard features. For that reason, some app data is not fully anonymous.

Advertising and Analytics

Duvance may use Google AdMob for ads, Firebase Authentication for sign-in, Firebase Firestore for app data storage, and Firebase Analytics for usage analytics. These services are governed by their own privacy policies.

How Data Is Used

We use your data to provide account access, store simulation progress, show app features such as portfolios and leaderboards, restore your data across installs, and operate advertising and analytics.

Data Sharing

We do not sell your personal data. Data may be technically shared with service providers such as Google Firebase and Google AdMob when required to operate the app.

Account Deletion

You can permanently delete your account and related app data from within the app. Some legal records, security logs, or aggregated analytics may remain for a limited time on service provider systems.

Financial Notice

Duvance is a simulation product. Balances, portfolios, performance, and AI analysis inside the app are virtual and must not be considered investment, trading, or cryptocurrency advice.

Contact

For privacy questions, contact duvanceapp@gmail.com.