The app can help you (1) upload videos from computer to your phone. (2) support many video formats.
How to use ?
Step 1: Make sure your iPhone and your Mac computer connect the same Wifi.
Step 2: Open the app, click "+", a window will pop, read the text, remember the ip address and dont close the window.
Step 3: Open the 192.168.1.x in your Safari (the ip address is in the text in step 2) . Upload the videos in Safari until it is finished, then return to iPhone, close the window above. Play the video.