AvgNiteCam gives stunning results both day and night, and when used on a tripod some cool multiple exposure effects of moving objects too.
At night you can easily capture detail in dark areas that is even difficult to see with your eyes and with no more sensor noise than a daytime image caught with the regular iPhone camera.
For moving objects day or night you can get a beautiful series of overlapping images that gives you a feeling of movement in a way different from traditional long exposure images. I really like that you can stop the exposure at any time allowing you to immediately save whats on the screen - even before it finishes the sequence you specified.
Fun and easy to use, gives full still camera resolution images; my go to app for iPhone night photography.
victorvs about AvgNite Cam : Average+Night Camera