Silent Unknown Call is an Android app developed by King HiM that allows users to keep their phones silent or on vibrate mode when receiving calls from unknown numbers. With this app, users no longer have to worry about being disturbed by unwanted calls from unfamiliar callers.

The main feature of Silent Unknown Call is its ability to automatically silence or vibrate the phone when an unknown caller tries to reach the user. This can be particularly useful for individuals who receive frequent spam or telemarketing calls, allowing them to avoid unnecessary interruptions.

It is important to note that the app requires a sufficient amount of RAM to function properly. If the user's phone does not meet the minimum RAM requirements, the app may not start up or have the desired effect.

Silent Unknown Call is a free app available in the Lifestyle category on the Android platform. It supports Android 1.5 or above, ensuring compatibility with a wide range of devices. The logo design for the app is powered by Chuiwo, adding a touch of visual appeal to the user interface.

Overall, Silent Unknown Call provides a convenient solution for those who wish to maintain a peaceful phone experience by silencing calls from unknown numbers. It is a user-friendly app that effectively serves its intended purpose.