Core Defense: App Security

Core Defense is a security and device safety app for Android that helps you understand potential risks, analyze installed apps, and keep your device running smoothly.

Scan your device, review app behavior signals, and identify potential security issues — all directly on your device with no account required. Unlike traditional antivirus apps, Core Defense focuses on security insights and device safety signals.

What Core Defense does

🛡 App security insights
Analyze installed apps and review potential risk signals based on permissions, activity patterns, and device settings.

🔍 Device security scan
Run an on-device security analysis to identify apps or configurations that may require attention.

📊 App activity insights
See which apps were recently active and better understand how your phone is being used.

🗂 Storage cleanup guidance
Find apps using large amounts of storage and free space using built-in system tools.

⚙️ System security check
Review device settings that may impact your phone’s security.

Privacy by design

✅ No account required
✅ No personal content uploaded
✅ No selling or sharing personal data

All analysis is performed locally on your device whenever possible.

Permissions (how they’re used)

Usage Access (optional)
Used only to analyze app activity and provide security insights.

Query installed apps
Required to analyze installed apps and generate security insights.

Core Defense helps you understand your device’s security and take action when needed.
Install Core Defense and run your first security scan in under a minute.