CallGuard – Spam Blocker

Block unwanted calls your way. iCloud sync, smart auto-sync, visual editor, and contact protection — all private, on-device.

CallGuard blocks unwanted calls at the system level using Apple's Call Directory Extension — before your phone even rings.

YOU DECIDE WHAT TO BLOCK

No pre-loaded spam lists. You create your own rules and only numbers you add are blocked. Nothing happens automatically.

BLOCKING OPTIONS

• Exact Number — Block a specific phone number • Range — Block all numbers within a range • Prefix — Block all numbers starting with a prefix

KEY FEATURES

• Visual Range Editor — Drag handles to adjust ranges with real-time feedback • Contact Protection — Your contacts are never blocked, even within a range • Overlap Detection — See which rules overlap and total numbers blocked • Capacity Tracking — Stay within Apple's 100K limit with visual indicators • Smart Auto-Sync — Rules sync automatically with intelligent debouncing • Sync Status — See exactly which rules are synced and which need updating • iCloud Sync — Optionally sync your rules across all your devices • Statistics Dashboard — Charts showing blocking activity and sync history • Live Activity — Track sync progress in Dynamic Island and Lock Screen

PRIVACY

• No account required • No data leaves your device • All processing is local • iCloud sync is optional and off by default

Available in English, French, German, Spanish, and Chinese.