A free app for Android, by RealNetworks Inc..

RealPlayer is an all-in-one mobile video app that lets you watch any video on your phone. With Chromecast and Airplay compatibility, you can instantly turn your phone into a TV so you can watch videos on the big screen with friends. Or, use remote access features to stream files right from your PC. Also, to reduce eye strain and enjoy better video quality, watch videos in dark mode. You can change the speed of the video you’re watching. Use Keychain for quick login, access your folders as you would on a PC, select multiple files at once, and so on.