Privacy Policy

Last updated: February 23, 2026

1. Introduction

Zero Billion, Inc. ("we", "us", or "our") operates Neo Browser ("the App"). This Privacy Policy explains how we collect, use, and protect your information when you use the App.

2. Information We Collect

Information you provide:

API keys if you choose to use the Bring Your Own Key (BYOK) feature (stored locally on your device only)
Subscription and payment information (processed by Apple, not stored by us)

Information collected automatically:

Basic analytics data such as app usage patterns and feature engagement
Device information (device type, OS version) for compatibility purposes
Crash reports and performance data to improve the App

Information we do NOT collect:

Your browsing history
Passwords or form data
Contents of web pages you visit
Personal files or photos

3. AI Features and Data

When you use AI features (AI Search, AI Agent, AI Builder), your queries are sent to third-party AI services (Google Gemini) to generate responses. We act as a proxy to protect your identity. We do not store your AI queries or responses on our servers beyond what is needed to process the request.

4. Attribution and Advertising

We use AppsFlyer for mobile attribution to measure the effectiveness of our advertising campaigns. AppsFlyer may collect device identifiers and interaction data. You can opt out of tracking via the App Tracking Transparency prompt shown when you first use the App. For more information, see AppsFlyer's Privacy Policy.

5. How We Use Your Information

To provide and maintain the App's functionality
To process your subscription
To improve the App and develop new features
To measure advertising effectiveness
To diagnose technical issues and improve performance

6. Data Sharing

We do not sell your personal information. We may share limited data with:

Apple: For subscription processing and App Store services
Google (Gemini API): AI queries when you use AI features (proxied through our servers)
AppsFlyer: Attribution data for advertising measurement

7. Data Storage and Security

API keys and preferences are stored locally on your device. We use industry-standard encryption and security measures to protect data transmitted through our services. Our API proxy runs on Cloudflare Workers with rate limiting and authentication.

8. Your Rights

You have the right to:

Opt out of tracking via iOS App Tracking Transparency
Delete your locally stored data by uninstalling the App
Cancel your subscription at any time through Apple
Request information about your data by contacting us

9. Children's Privacy

The App is not intended for children under 13. We do not knowingly collect information from children under 13. If you believe we have collected such information, please contact us immediately.

10. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of material changes by updating the "Last updated" date. Your continued use of the App after changes constitutes acceptance.

11. Contact Us

If you have questions about this Privacy Policy, please contact us at [email protected].