whowho

Smart caller ID and spam blocker that puts you in charge

WhoWho is a powerful caller ID and call management tool that aims to turn every unknown number into a known quantity. Widely used in Korea, it combines live caller identification with a rich dialer interface and a strong focus on blocking spam and scams.

The main attraction is its real-time identification of incoming calls. As the phone rings, WhoWho checks its extensive community-powered database and tells you whether the number is trustworthy, a business contact, or likely to be spam or voice phishing. This makes it easy to decline nuisance calls while making sure important ones get through.

WhoWho also doubles as a full-featured calling hub. Set it as your default caller and you gain quick access to frequent contacts, detailed call logs, and handy extras like memos, friendliness stats for each contact, and schedule management linked to calls. Call recording support is another welcome addition for users who like to keep track of important conversations, subject to local laws.

Blocking options are granular and effective: you can automatically reject known spam, silence specific categories of callers, or blacklist individual numbers. The communal reporting feature is particularly useful, letting users flag suspicious numbers so the entire user base stays safer over time.

Widgets for call logs, keypad, and favorite contacts add convenience, and there’s even support for smartwatches, so you can see who’s calling and act on it from your wrist. The app relies on a data connection for caller ID, and, due to Google policies, text message blocking is no longer supported on newer system versions.

Overall, WhoWho is an excellent choice if you receive frequent unknown calls and want more control, clarity, and protection whenever your phone rings.