CellGuard is a tools app developed by Blackfox Media LLC.
Download Statistics
CellGuard has been downloaded 3 times. In the last 30 days, the app was downloaded 0 times.
User Ratings
The app has no ratings yet.
App Information
CellGuard costs $3.99 to download. The APK download size is 2.14 MB. The latest version available is 1.0.9. The last update was on May 19, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play 8 weeks ago.
Description
Your phone. Your privacy. Real-time defense against cellular surveillance.
CellGuard is an anti-surveillance security app for Android that detects IMSI catchers (fake cell towers / Stingrays), app-based snooping, and stalkerware in real time. All analysis runs on-device — nothing is transmitted, collected, or shared.
━━━━━━━━━━━━━━━━━━━━━ WHAT CELLGUARD DETECTS ━━━━━━━━━━━━━━━━━━━━━
🛰️ Cellular Surveillance • IMSI catchers and fake base stations • Network downgrades (LTE → GSM, classic stingray technique) • Zero neighboring cells (fake tower signature) • Abnormally strong GSM signals • Rapid cell tower handoffs • Location Area Code changes without movement
📱 App-Based Snooping • Apps actively using your microphone, camera, or location • Stalkerware detection via dangerous permission combinations • Apps with accessibility services reading your screen • Unknown device administrators • Notification listeners intercepting your messages • Sideloaded apps holding sensitive permissions
🌐 Network Threats • Active VPN profiles intercepting traffic • Suspicious certificates and potential MITM
━━━━━━━━━━━━━━━━━━━━━ HOW IT WORKS ━━━━━━━━━━━━━━━━━━━━━
CellGuard runs continuous cellular detection heuristics alongside real-time AppOps monitoring. When a threat is detected, you get an instant notification with severity level and technical detail.
THREAT LEVELS 🟢 SECURE — No anomalies detected 🟡 LOW — Minor indicator, likely benign 🟠 ELEVATED — Multiple indicators, vigilance warranted 🔴 HIGH — Strong evidence of surveillance 🚨 CRITICAL — Active protocol-level attack confirmed (root mode)
Standard (unrooted) devices still get full cellular heuristics, sensor monitoring, and push notifications — root only unlocks deeper analysis.
━━━━━━━━━━━━━━━━━━━━━ PRIVACY BY DESIGN ━━━━━━━━━━━━━━━━━━━━━
CellGuard does NOT: ✗ Collect personal data ✗ Transmit information off your device ✗ Use analytics, ads, or trackers ✗ Require account registration ✗ Need internet access for detection
Every calculation is local. The only off-device connection is the Play Store update check.
━━━━━━━━━━━━━━━━━━━━━ KNOWN LIMITATIONS (we believe in honesty) ━━━━━━━━━━━━━━━━━━━━━
• Passive IMSI catchers (listen-only) cannot be detected by any software method — physical SDR hardware is required • Cell heuristics can trigger false positives in rural areas, buildings, or during carrier maintenance • Encryption verification requires root + Qualcomm chipset • MediaTek and Exynos chipsets do not support DIAG protocol-level detection • CellGuard is a detection tool, not a blocker — it alerts you to threats; it cannot prevent them from occurring
━━━━━━━━━━━━━━━━━━━━━ WHO THIS IS FOR ━━━━━━━━━━━━━━━━━━━━━
• Journalists and activists concerned about targeted surveillance • Privacy-focused users • Domestic abuse survivors worried about tracking apps • Security researchers • Anyone who values phone privacy
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