SSJ - Social Signal Jammer is a free Android app developed by VikingSource and categorized under Lifestyle. The app's purpose is to reveal the high daily usage of smartphones by disturbing other smartphone or tablet users with random sounds. The idea is not to drive anyone else crazy but to raise awareness about the excessive use of technology.

The app allows users to create their own jammers by selecting appropriate signals, adding sounds from their device storage, or creating their vibration patterns. The tutorial provides further information on how to use the app and create jammers. SSJ - Social Signal Jammer is an innovative app that encourages users to reflect on their smartphone usage and its impact on their daily lives.