IOS – The video app on iPhone does not remember last watched position

This could be a memory issue that the developer was forced to handle this way. All apps in iOS are subject to memory warnings at which point the app (developer) is to free up as much memory as it can by clearing out what the developer considered unnecessary information.

Another point of of possible quitting is if a phone call is being received. Apps only have a split second to save what is crucial before quitting to make room for the call. Again, the developer has to decide what is truly important and what isn't to save.

The save position may not sound like a lot, but mobile devices really don't give developers a lot of room to play with and media of any type is a resource hog.

I'm surprised nobody has answered this correctly.

The solution is to open iTunes, click on your iPhone, go to the Photos tab, then Sync Photos for the folder that contains the photo and video subfolders you want to sync. Each subfolder will then be sync'ed to your iphone UNDERNEATH the Camera Roll as new Albums, and these are treated seperately than the Camera Roll and will always remain synced.

Furthermore, apps that can access the Camera Roll almost always can also access Synced Albums, so this should really work well for you. I keep a whole bunch of old photos and videos on my iPhone at all times using this method and it works great.

As a bonus, unlike the Camera Roll, these Synced Albums don't get backed up in iTunes, so it won't slow down your Backup like a growing Camera Roll will.