Android Apps That Allow You to Block SMS

By Lauren Miller

Receiving spam via short message service is not only annoying, it can clog up your inbox, making it harder to sift through important business-related texts. Users of Android OS mobile devices can manage the flow of unwanted SMS messages with popular applications that block spam texts. Many of these apps are free, include numerous features and have high ratings from Android users in the Google Play app marketplace.

SMS Blocker

SMS Blocker is an award-winning app that works on devices running Android 2.1 and later versions. It can block text messages based on numbers, phrases and words. It keeps the blocked messages in a log. You can move blocked messages to the inbox if they are not spam. SMS Blocker integrates with a phone’s contact list and text inbox. For more features, users can purchase a paid version of the app, which offers password protection, an auto-delete option and an auto-response feature.


The Block SPAM SMS app works on devices with Android 1.9 and up. It is a simple app with basic text blocking features. Users set up a trusted list of senders to begin using the app. It automatically blocks all non-numeric senders unless you add them to a trusted list. You can add numbers manually to the blocked list. The paid version of the app offers more features, such as blocking texts based on keywords and a notification icon in the phone’s status bar.


Postman works on devices with Android 1.6 and up. In addition to a basic text blocking filter, it offers an automatic spam cleanup feature that deletes unwanted texts. Its smart spam notification tool allows users to decide how often they want notifications of new spam messages. You can adjust the spam filter level from low to high. The high setting blocks all senders that are not in your phone’s address book or on the Postman trusted senders list.

Calls Blacklist

Calls Blacklist woks on phones with Android 2.1 and up. Its SMS filtering feature creates a blacklist of unwanted numbers. You can add numbers to the list from your address book, contact lists and message logs. It features noiseless blocking without any signs of the text, or you can set the app to notify you when a text gets blocked. The app saves all blocked texts in a journal so you can review blocked messages. Calls Blacklist also blocks private numbers. The app is compatible with several languages including French, German, Spanish, Chinese, Korean and Japanese.