The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
From Matthew Mitchell:
This app allows you to take night vision effect photos and videos with sound. You can customise it in many different ways. This includes the ability to use the iPhone 4's torch.It uses advanced technology to provide high quality images with a night vision effect while maintaining smooth video. It improves the lighting to make images more visible than from the iPhone's camera.This app is great value. The many options to play with are:Colour - Red, Green, Blue, Purple, Aqua, Yellow, FullPicture Quality - Low, NormalIntensity - Low, Medium, High - The level at which the brightness is increased.Enhance Brightness - On, off - Modifies the brightness to make the image clearer in dark conditions.Demo - On, off - When on, you can compare the effect to the standard camera image.Torch - On, off - You can turn the torch on or off if your device has one.Please note, iOS devices do not have any inferred sensors. The night vision effect therefore works best in low-light conditions and not pitch black. The torch on the iPhone 4 should provide enough light for this to work in very dark areas. The app will work on other iOS devices with a camera.Tested on iPhone 4 with iOS 4.2.