App Shield – Phone Guard

Guard your device with App Shield — your all-in-one security, privacy, and device health companion.

App Shield gives you a clear picture of what's happening on your Android device. Run powerful diagnostics, audit app permissions, uncover security risks, and monitor your device health — all from a single, lightweight app.

🛡️ Protection Score
Get a real-time Protection Score that summarizes your device security posture at a glance. The score combines permission audits, special access checks, device security status, and battery health into one easy-to-understand number — so you know exactly where you stand.

🔐 Privacy & Permission Audits
See which apps can access your sensitive data. App Shield checks 10 permission categories across every installed app:

• Location (GPS & background location)
• Camera & Microphone
• Contacts & Accounts
• SMS & Text Messages
• Phone & Call Logs
• Storage & Photos
• Calendar
• Body Sensors & Activity Recognition
• Nearby Devices & Bluetooth

For each category, you'll see which apps have the permission declared and which ones actually have it granted — helping you spot apps that have more access than they need.

⚠️ Security Action Center
Security findings are grouped by app and prioritized by severity. For each issue, you get clear context on why it's a risk and what to do about it:

• Fix Now — jump straight to the relevant system setting
• Trust App — mark an app as safe to hide it from future scans
• Ignore Finding — snooze a specific issue
• Uninstall — remove the app entirely

Findings include detailed explanations like "Calculator app requesting microphone access is unusual" so you can make informed decisions, not just guess.

🔎 Special Access Audit
Check which apps have powerful system-level access — permissions most users never see:

• Accessibility Services
• Display Over Other Apps
• Notification Access
• Install Unknown Apps
• Device Administrator
• Usage Access
• All-Files Access
• Battery Optimization (unrestricted)
• VPN
• Modify System Settings
• Picture-in-Picture
• Exact Alarm
• Default System Apps

Each entry shows the risk level and explains why that access matters, with a direct link to the relevant system settings.

🔒 Device Security Diagnostics
Run a full security checkup on your device:

• Lock screen & biometric security status
• Storage encryption status
• Root & Magisk detection (checks SU binaries, test-keys, and known root packages)
• Developer Options & USB Debugging status
• SELinux enforcement mode
• Android security patch age (warns if outdated)
• Private DNS configuration
• Bootloader status

🔋 Battery Laboratory
Monitor your battery health and charging status in real time:

• Battery temperature with thermal warnings
• Charging health status (Good / Overheat / Dead / Cold)
• Voltage, current flow, and power wattage
• Battery technology (Li-ion, etc.)
• Charging source detection (USB / AC / Wireless)
• Estimated time to full and time remaining

📱 Device & System Insights
Explore your device hardware and software details:

• CPU architecture, board, and core count
• Total, available, and used RAM
• Supported ABIs
• Display resolution and density
• Sensor count
• Android version and codename
• Kernel version
• ART runtime version

📊 Usage & Network Insights
Understand your device usage patterns:

• Daily app usage sorted by time spent in foreground
• Last used timestamps for each app
• 30-day mobile data consumption
• 30-day Wi-Fi data consumption

✨ Why App Shield?

• Simple, modern interface — no technical knowledge needed
• Privacy-focused — all data stays on your device
• Actionable insights — not just numbers, but clear next steps
• Lightweight — minimal battery and storage footprint
• Ad-free option available

Take control of your Android device. Understand your apps, protect your privacy, and keep your device healthy — with App Shield.