NoCall

NoCall is a free community database of spam and scam phone numbers for every country, with more than 55 country editions. Look up an unknown number to see a risk score from 0 to 100, a category such as telemarketing or fraud, and comments from other people who received the same call. Reports are anonymous and moderated by humans, and the scoring formula is public. NoCall does not sell data. The iPhone and Android apps identify and block spam calls and check suspicious SMS. Free with ads; an optional one-time Pro purchase (2.99 EUR) adds full blocking and no ads. Made by Byteguard SL.