Charlie Charlie Challenge - Official Simulator is an Android app created by First Class Media B.V. It is a free lifestyle app that allows users to play the popular Mexican game Juego de la Lapicera (game of the pens) in a digital format. The game is based on the concept of asking Charlie, a supernatural entity, questions and waiting for the pencil to move to indicate a response.

The app uses voice recognition technology to recognize the user's questions and provide answers based on pre-programmed responses. It is important to note that this app is for entertainment purposes only and does not perform actual spirit communication. The official Charlie Charlie Challenge app is a fun and exciting way to experience the popular game without the need for a pen and paper.