It’s also worth pointing out that Nomorobo was the winner of the FTC Robocall Challenge. Thankfully, Nomorobo (short for no more robo) is certainly up there with the top robocall blocking apps available today. But until that day arrives, third party apps like this will have to do. However, the developer’s Play Store page doesn’t specify the Android versions that work with it.Īs we’ve briefly mentioned above, it would be a great addition to smartphones if manufacturers provided a robocall blocking app by default. Given that Truecaller is running on millions of phones right now, it is designed to work with a wide range of Android versions. There are subscriptions available wherein the customers pay per month or per year. This app is free to download on the Play Store, but it comes with ads and in-app purchases. Truecaller is filled with additional features that makes it more than just a standard call blocking app. This app can also help you back up your contacts as well as messages to Google Drive, making it easier to restore it on another phone. In addition to blocking unwanted calls, Truecaller also works as an excellent third party caller ID solution. It has been around for quite a while and has built a reputation in the industry as the leading source to detect all spam calls. It goes without saying that Truecaller is one of the most popular spam and call blocking apps available for Android.