This app, called horizontal camera, is designed to turn your Android smartphone into a wireless visual presenter in the classroom. It offers a mirroring function that allows you to view the mirrored screen on your computer through a dedicated viewer or browser. One of the standout features of this version is that the dedicated viewer automatically adjusts its window based on the mirroring signal, providing convenience during class.

The app is specifically designed for landscape mode and supports only the rear camera, ensuring a clean and clutter-free interface. The camera screen does not turn off while the app is running, and it can be dimmed temporarily to avoid distractions in the classroom. Other notable features include zoom functionality, the ability to take pictures, a screen stop function, and the option to draw lines in various colors and thicknesses. Additionally, there is a touch animation function that highlights the screen touch location.

Please note that this app was developed by the individual developer, MMSSEM, as a hobby and may have some limitations. Use it with the understanding that it may not be perfect.