Ever thought someone might eavesdrop through your smart phone? Skewy is a privacy protection method, which is more than just a software setting. With Skewy you can mask your conversation with a simple – yet effective method. Simply making the audio data picked up by your phone unusable. Additionally, Skewy can detect ultrasonic signals to indicate the presence of device tracking technologies*. * References: - Arp et al. 2017: Privacy Threats through Ultrasonic side Channels on Mobile Devices, TU Braunschweig. - https://en.wikipedia.org/wiki/SilverPush Drawings: Francisconimo