ApolloOne is an efficient and feature-rich photo, video, and EXIF viewer. The program uses advanced operating system features such as multi-threading, grand central dispatch, and core image graphics to ensure app responsiveness. The tool comes with a powerful slideshow function with 12 GPU-accelerated transition effects. The slideshow can run on full screen or in a window. Furthermore, ApolloOne performs reverse geocoding to find the actual address of where the photo or video was taken together with a map of the location.