GIF Image Animator by Medieval Software is a free Android app that allows you to open and view any type of Graphics Interchange Format (GIF) file. The app is designed to open files, even those with errors or extremely large sizes, and provides a wide array of features to enhance your viewing experience. You can control the animation speed, toggle the checkerboard background on or off, enable or disable anti-aliasing for pixel art, and view debug information about the input source. However, it is important to note that you must use a third-party file explorer and click on any GIF picture in order to use this software.