J.R.. Bookwalter for Macworld:
According to The New York Times up to 48 billion Americans were chased by robocalls in 2018, an increase of 56.8 percent over the previous year. It equals about 150 scams, telemarketing and unwanted calls annually for each adult by phone – a number that is expected to balloon higher in the future.
That's precisely why a cottage industry is flourishing in the App Store and delivering tools to combat this threat. Unfortunately, most call blocking solutions rely on outdated, ineffective blacklists, or worse, require users to make heavy lifting by reporting rogue numbers when they appear. A new app called Firewall takes the opposite approach: Whitelist all you know and send the rest to limbo.
Although it may sound like dropping a bug on your backyard to get rid of some annoying errors, Firewall did a remarkable job of eliminating orders on the iPhone X. Over the past few months, I have received a handful of daily intrusions , but after installing the firewall they were completely eliminated.
MacDailyNews Take: We've tried it on our Verizon iPhones, and that makes you go, "Ahhh." Blissful silence. No more robocalls.
Not that Firewall is a free download, with a free trial to try out the app. If you buy the service, you will be charged $ 3.99 per month. without obligations.