We want to inform you of third-party apps you can use to block calls once you're aware of how to block certain phone calls from iPhone or Android. Hiya Caller ID and Block A popular and frequently used caller ID blocking programs on Android and iPhone currently are these. With this application, you can block spam calls and track who called you recently. It has over 10 million downloads and is easy to use. Call Blocker - Calls Blacklist For Android-powered devices, Call Blacklist is accessible. However blocking calls as well as SMS messages is a breeze with the application. It is easy to access the blocked call(s) through your call history using the application. Call Blocker The app is available only on Android smartphones. It offers the same features as Calls Blacklist. The blocked number can be found in your call history and then added on your phone's list to prevent making calls. It currently appears to have over 10 million users through Google Play.