GPlayer is a video player for iPhone and iPad that allows you to play any video file, regardless of its format. It has been praised by ZDNET as filling the void left by VLC on iOS devices. With GPlayer, you can enjoy AVI, WMV, RMVB, ASF, H264, MKV, TS, M2TS, MP3, WMA, WAV, OGG, FLAC, SMI, ASS, SUB, SRT, and TXT file formats. The app also supports USB sync for fast movie transfer through iTunes, as well as WiFi upload for cable-free file transfer. GPlayer offers a range of features including file management, movie thumbnail preview, different play modes, screen lock, gesture support, resume function, TV out, and iTunes backup. It is a versatile video player that provides a seamless playback experience on iOS devices.