The DSP Audio Filter is a tool that enables you to filter frequencies from an audio spectrum by using your cell phone’s microphone.
This app was originally programmed for Ham Radio (Amateur Radio) operators to remove unwanted background noise and impr

If you are in a meeting but expacting an important call, or want to sleep but w

Want to stop unknown and unwanted calls ?

Call & SMS Blocker

This app does audio amplification of low audible signal and noise cancellation in real-time. The app allows the operator to design custom Ideal Filters such as Lowpass, Highpass, Bandpass and Bandstop filter by drawing on the touch screen. Because of the

Unknow SMS will be intercepted. If the contact's name contain character '-', T

┻┻━◎ Your PRO Key for Droid Call Filter!The Pro version remove all ads contained in the free version!"Droid Call Filter" is a tool designed for helping you to stop unwanted calls & messages.The best phone call and text message filter & call blocker for fr

Call Filter, Call Blocker, Message Blocker, SMS Blocker

Transform an image taken by your camera or from your device memory into a pencil

The Most Powerful, Feature Packed Call & SMS Filter Available

Firewall is an application to block incoming calls. It uses, like security firew

Privacy Filter help block the screen view from a side view. Also, display is too

Want those important persons' calls to come through and no one else's? You can

Displays the filter on the screen, and prevents the peep from surroundings.

Displays the filter on the screen, and prevents the peep from surroundings.

Call Filter helps to block unwanted calls and texts and keep your privacy.