A long time ago computers didn't have graphics. All they could do was show green characters on a black screen or black characters on white paper. But programmers were resourceful. They discovered that if you filled the screen with certain characters and squinted you could sort of make out a picture. Thus ASCII art was born.
The security report shows that this application is safe. Darkside Technologies Pty Ltd is the developer of the app which can be found in the Photography category. On Google Play, ASCII cam is rated 3.7 by its users.