Have you had a chance to look at truecaller? It crowdsources data on who is spam...

suresh70 on July 10, 2019 | parent | context | favorite | on: Spam call filter app. Possibe?

Have you had a chance to look at truecaller? It crowdsources data on who is spamming, advertising and marketing. In India where you get sales pitches even from a personal number, truecaller is a savior. Instead of having to answer questions, crowdsourcing would be a viable one