With its 125 pictures/minute capture speed and three different continuous shooting modes like those on your SLR camera, you can use it in any situation even in the dark with the iPhone flash switched on. 

Photos are automatically saved to the iPhone photo album when you are not taking any pictures. What if it’s still saving and you want to take another picture? Don’t worry – it pauses the saving the moment you press the shutter button and gives you the quickest capturing once again. Quick Camera usually retails for $0.99/£0.69 but it currently available for free, in the US and UK App Stores. Download here.