whowho - Caller ID & Block

Caller ID and spam blocking keeps you in control of every incoming call. whowho - Caller ID & Block is the trusted phone app used by millions to identify unknown numbers in real time and block unwanted calls before they interrupt your day.

Know who's calling before you answer. When an unknown number rings, whowho instantly displays caller information—whether it's a legitimate contact, a business, or known spam. You'll never again wonder who's on the other end of the line. The app's real-time identification feature works seamlessly as your calls arrive, giving you the confidence to answer safely or reject instantly.

Build a safer calling experience through community intelligence. Every user contributes to whowho's knowledge base by reporting spam numbers, voice phishing attempts, and unwanted callers. This crowdsourced approach means the database grows stronger every day, protecting your entire network of contacts. You're not just blocking spam for yourself—you're helping millions of others do the same.

Manage your contacts and calls with purpose. Set up custom notes on phone numbers to remember why you flagged them, view friendliness stats on each contact, and access your call logs and frequent contacts through convenient widgets. If you need to retain proof of conversations, the built-in call recording feature lets you capture important calls. Schedule reminders and integrate call management directly into your daily workflow—everything you need is built into one app.

Block spam and phishing with multiple options. Configure blocking rules that suit your needs: reject numbers you've marked as spam, block unknown callers entirely, or silence specific contacts while staying informed. Starting from Android 4.4, text message blocking follows Google's service policies, so voice calls remain your primary defense against unwanted contact.

Extend protection to your wearables. Set up whowho on your smartwatch through simple settings adjustments, so caller ID and blocking work across all your devices.

whowho - Caller ID & Block is completely free and works with 3G or WiFi internet connections. Take back control of your phone today.