Medusa
From Jenny Everywhere Wiki
Medusa was a smartphone app created by one universe's version of Jenny Everywhere. It had the ability to turn people into stone statues. She created it to use on The Puritan Streaker but was not able to test it, since she did not know many people who deserved to be statues. While the Streaker was distracted by Jenny's rival Olga Desmodica, she activated the app and the Streaker did indeed turn to stone. Jenny was relieved that the app worked. According to her, the process was irreversible, ensuring that the Streaker would remain a statue forever. (PROSE: There's an App for That)
Behind the scenes
The app was named for Medusa, a figure from Greek mythology whose appearance would turn people to stone if they looked at her.