Call Guard - Spam Call Blocker

Take back control of your phone with Call Guard — the smart, offline-first call screening and spam SMS notification muter designed to protect your privacy and daily peace of mind. Stop robocalls, illegal loan harassment, lottery scams, fraud attempts, and aggressive telemarketers without sacrificing your battery or uploading your private contacts to external servers. KEY FEATURES OF CALL GUARD: 🛡️ Smart Offline Call Screening • Automatically block incoming calls from unknown numbers not saved in your phonebook. • Advanced Prefix Blocker: Instantly intercept suspicious international codes (+44, +1, etc.) or specific spam area codes. • Powered by the native Android Call Screening Service for seamless, instantaneous call interception without ringing. 📩 SMS Spam Notification Silencer • Automatically detect incoming SMS messages containing spam or phishing keywords (e.g., loan, casino, win, prize, transfer, claim). • Silently mute spam notifications so your screen stays clean, while preserving genuine text messages safely in your inbox. • Add custom keywords tailored to spam patterns in your region (Pro feature). ⛔ Personal Blacklist & VIP Whitelist • Easily add recurring harassing numbers to your private Blacklist. • Whitelist critical family members, colleagues, doctors, or couriers so their calls and messages always reach you, even during Emergency Mode. 🔒 100% Privacy Focused & Zero Data Collection • Your contacts, call history, and text messages remain strictly on your device. • No contact book uploading, no external cloud databases, and no user tracking. What happens on your device stays on your device. 💾 Local Backup & Restore (.db Format) • Export your customized blocking rules, keywords, and lists into a lightweight .db file. • Save directly to your device storage or share via Google Drive/WhatsApp to effortlessly migrate settings when switching to a new phone. 🔋 Battery Friendly & Reliable 24/7 Protection • Lightweight architecture designed for minimal battery consumption while staying vigilant in the background. Download Call Guard today and enjoy a clean, distraction-free phone experience!