According to The New York Times, upwards of 48 billion Americans were hounded by robocalls in 2018, an increase of 56.8 percent over the previous year. That averages out to roughly 150 scam, telemarketing, and unwanted calls annually for every adult with a phone—a number expected to balloon higher in the future.
That’s precisely why a cottage industry flourishes on the App Store, supplying tools to combat this menace. Unfortunately, most call blocker solutions rely on outdated, ineffective blacklists, or worse yet, require users to do the heavy lifting by reporting rogue numbers as they pop up. A new app called Firewall takes the opposite approach: Whitelisting everyone you know and sending the rest to limbo.
