Stealth SMS is THE SMS Filter to hide received SMS from other persons. SMS will arive silently, just a small icon with a text will be displayed in the statusbar to inform you - use a custom text like "System update available" to be safe.; ). The launcher is called "LogView" and can be protected with a password.
Stealth SMS was checked for viruses and it was found 100% secure. StealthSMS is the official developer of this application that can be found in the Communication category. The average score for the app is 4 on Google Play.
Over 10K users downloaded Stealth SMS and its latest update was released on Aug 9, 2013. Adverts are a part of this application. Get the .apk installation package of Stealth SMS 2.3.0 that is available for free and take a look at users' reviews on Droid Informer. The file size is 248 KB and the app is built for Android 1.5 and higher.