A Psicologia da Mentira is an Android application that provides insight into the psychology of lying and how body language can reveal the truth. Developed by Keanu, this free app falls under the category of Education & Reference, specifically Books. The program is compatible with Android 9.0 and is designed to help users identify the signs of dishonesty in others.

According to studies, only 7% of the impact of a presentation is determined by its content, with 38% being attributed to tone of voice and 55% to nonverbal communication such as posture, gestures, and eye contact. A Psicologia da Mentira is based on this principle and aims to help users become better at detecting lies by observing body language. The app presents 30 signs of lying and provides valuable information on how to identify them. With this app, users can become more aware of the power of nonverbal communication and gain a better understanding of human behavior.