Privacy Policy

This Privacy Policy explains how we collect, use, and protect your information when you use our mobile application Screw Flow: Smart Pin Puzzle ("App"). By downloading, installing, or using our App, you agree to the practices described in this policy.

What Information Do We Collect?

We gather only necessary information to enhance your gaming experience and ensure the App’s smooth operation.

• Account & Profile Information: When you sign in through Google, Apple ID, or Facebook, we may receive your registered email address, display name, and profile picture. This information is used for account creation, gameplay synchronization, and personalized experiences.
• Device & Technical Information: We may collect Advertising Identifiers (IDFA/GAID), IP address, device type, operating system version, language settings, screen resolution, and network information to optimize gameplay and improve compatibility.
• Gameplay & Usage Data: We collect information such as puzzle completion rates, level progress, time spent on stages, hint usage, reward interactions, and preferred difficulty settings to improve game balance and user experience.
• Error & Performance Reports: Crash logs, freeze reports, and performance diagnostics may be collected automatically to improve stability and fix technical issues.
• Third-Party Optional Data: Advertising partners such as AdMob may request optional permissions related to advertising services. Such data is processed solely by those partners according to their own privacy policies.

How Do We Use Your Information?

• Synchronize gameplay progress and achievements across devices.
• Personalize game recommendations and puzzle experiences.
• Improve gameplay mechanics, level balancing, and app stability.
• Provide customer support and resolve technical problems.
• Deliver non-intrusive advertisements relevant to your interests.
• Analyze usage trends and develop new content and features.
• Notify users about updates, events, and policy changes.

How Is Your Information Shared?

• With trusted advertising and analytics providers necessary for App operations.
• With service providers assisting cloud storage, crash reporting, or account synchronization.
• When legally required by applicable laws or government requests.
• In anonymized or aggregated form for analytics and research purposes.

We do not sell personal information to third parties.

Data Security

• TLS 1.3 encryption for data transmission.
• AES-256 encryption for sensitive stored data.
• Restricted internal access to personal information.
• Routine security reviews and vulnerability monitoring.

Although we apply industry-standard safeguards, no digital system can guarantee absolute security.

How Long Do We Keep Your Information?

• Account information is retained while your account remains active.
• Gameplay data is retained to preserve progress and achievements.
• Analytics and diagnostic data may be stored for up to 9 months.
• Data required for legal compliance may be retained longer if necessary.

How to Request Data Deletion

You may request deletion of your account and associated data at any time:

• In-App: Settings > Account & Privacy > Delete My Account
• By Email: Send your request to 19868387287@163.com with the subject: Screw Flow Account Deletion Request

Verified requests will typically be processed within 14 business days.

Third-Party Services

The App may integrate third-party services including:

• AdMob
• Google Sign-In
• Apple ID Login
• Facebook Login
• Firebase Analytics
• Crashlytics

Children’s Privacy

Screw Flow: Smart Pin Puzzle is not intended for children under 13 years old. We do not knowingly collect personal information from children.

Changes to This Policy

We may update this Privacy Policy periodically. Significant updates may be communicated through in-app notifications or email before taking effect.

Contact Us

If you have questions regarding this Privacy Policy, please contact:

Email: 19868387287@163.com