Instafilm lets you use real time color effects to your video clip that being recorded from your device's camera and you can capture still frames that you want while you're recording video. Unlike many other apps, you can use this one to look through your camera at the world as you want it to be. Furthermore, this app allows you to add color effects to the video clip loaded from Camera Roll

Main features
•Add color effects to video that being captured from camera in real-time
•Add color effects to video that loaded from Camera Roll
•Capture still frames from movie while you are recording and save to Camera Roll
•Currently this app is supporting twenty-six different color effects and four video resolutions 1920x1080, 1280x720, 960x540 and 640x480. Furthermore, you can switch between front and back camera