Knowho - Private & Spam Guard

Knowho is a caller ID app built around your personal whitelist — not a spam database. Spam block Apps known spam numbers. But voice phishing numbers change daily. Unknown numbers slip right through. Knowho flips the approach. • You register only the numbers you trust. Everything else? Stay alert. • No matter how many times scammers change their number — they can't fool a whitelist. Features • Import numbers from Notes, SMS, messenger apps — anywhere with a share button • Completely separate from iOS Contacts • Registered names shown automatically on incoming calls • Fully offline · No data collection — Your contacts stay on your device and are never sent to any server