Who Called identifies unknown numbers and flags spam and scam calls in real time.
A powerful caller ID that works instantly and never asks for money.
Instantly see the name and reputation of any incoming or unknown number.
Fraud, robocalls and telemarketers are flagged automatically from community reports.
Send annoying numbers to your blocklist with a single tap — they won't bother you again.
The database updates in real time thanks to millions of users worldwide.
Numbers are hashed and encrypted — not even we can read the contents of your data.
Setup takes less than a minute. No card, no registration.
Grab the file straight from this site and install it on your Android phone.
Let the app read incoming calls — that's what lets it show you who's calling.
From now on every call shows who's on the other end. Free, forever.
All data is stored encrypted. We physically cannot see the contents — the keys aren't ours to read.
Numbers are never stored in plain text — only as irreversible hashes used for matching.
No ads, no data brokers. Your privacy isn't the product.
We're funded by donations from businesses and organizations, not by charging you. That keeps the app free for everyone. The bigger threat to that model isn't cost — it's fraudsters who abuse the network and drag quality down, which is exactly what we fight every day.