He tries the app

Sitting on a bed he picked up his phone. Turning on the screen he is welcomed with an unfamiliar application with a big title "Reality Edit App" and only two buttons under - "Start Reality Alteration" and "App Information".

Clicking on the info button he is presented with a long text explanation of how the app works.

"Bullshit! How can I believe this? An application that allows altering people around? And they are unaware of change?" He face-palmed his forehead. But something was intriguing about the application. "What if it's true? The phone looks unusable anyway so giving it a try can make no harm."

He clicked on "Start Editing Reality" and he is welcomed with a message
'Please select target to generate statements.'. Opening a list of targets he is welcomed with few names.

"Oh my god!" How can the app know his name? "They hacked all my phone data..." He spots his sister's name and also his sexy neighbor Ms. Davis. "This is unreal! I can believe this shows me, but my sister and Ms. Davis are so unusual. And how does it know they are nearby?"
There are a few names he does not recognize.