Light Meter Wheel for iPhone is a unique photography tool that offers a new light meter concept for iOS7 users. The program combines Apple's customization features with the developer's original light meter idea, creating a comprehensive solution for photographers. With this app, users can access a wide range of functionalities without the need to switch between different modes, apertures, or speeds.

The key features of Light Meter Wheel include ISO settings from 3 to 6400, adjustable shutter speeds fromto 4 hours, apertures ranging from f/0.7 to f/1024, an exposure timer for pinhole cameras, precise light metering from -2EV to 21, the ability to save readings audibly, incident light metering using the front camera, app customization through gallery images, and calibration options.