The video app can’t be used to record videos and add various filters. But if you want to save a frame from your favorite video as image, StillShot will help you.
StillShot is an easy-to-use video app developed by Macadamia Apps, and designed for iPhone and iPod touch. The iPhone app features minimalistic, intuitive user interface, and comes with a tutorial video to teach you how to use the video app, but apparently, even without the tutorial, you can also easily handle the iPhone app well. All you need to do is just to import your video from your camera roll, the video app will automatically analyze the video, and list all frames of the video in order that you can pick up the best frame, and saving it as a photo. Apart from that, the video app supports the original resolution of the video.
StillShot with a size of 13,9 MB is compatible with iPhone, iPod touch and iPad running iOS 4.0 or later. The iPhone app is free for a limited time at present. If you’re interested, jump to App Store for more details.