To be honest, I never understood these applications that try to replace my normal camera. How long I searched for it, found it and read ultimate shoot cameras review, chose the model and bought it. And no smartphones can compare to my camera. The app will not replace the functions of the device, even the shutter speed and light. If there are no special tasks, then a long shutter speed is now required in low-light conditions — at night, during twilight or before dawn, indoors-when using a flash will spoil the photo, illuminating the foreground and darkening the background. And for many special cases, you can not do without it in any way.