NumberFusion Privacy Policy

Effective date: July 1, 2026

This policy explains what NumberFusion collects, why it is collected, and how you can delete your account.

Data We Collect

• Account identifiers: Google/Firebase ID or hashed email for email-password accounts.
• Device and app information: install ID, platform, app version, and session ID.
• Gameplay data: highest unlocked level, level attempts, page events, power-up use, and purchase verification results.
• Purchase data: Google Play product ID, transaction/order metadata, and a hashed purchase token. We do not store payment card details.

How We Use Data

We use data to provide login, progress sync, account recovery, gameplay analytics, fraud prevention, purchase fulfillment, customer support, and compliance with Google Play requirements.

Sharing

We use Google services for sign-in and Google Play purchase verification. We do not sell personal data.

Security and Retention

Network requests should be served over HTTPS in production. Passwords are stored as salted PBKDF2 hashes. Analytics and purchase records are retained only as long as needed for operations, fraud prevention, legal compliance, and aggregate analysis.

Account Deletion

You can request deletion in the game from Settings > Delete Account. The server marks your account deleted, clears identity fields, and anonymizes analytics events. You may also request deletion at Account Deletion.

Children

NumberFusion is not intended to knowingly collect personal information from children without required consent. Do not submit account information if you are not old enough to use the service in your region.

Contact

For questions or deletion requests, use the developer contact email shown on the NumberFusion Google Play store listing or visit Contact Us.