Photo Light Exposure Meter is a free iPhone application developed by Pavel Bukhonov, designed to help photographers take better pictures. The app is easy to use and comes with large and comfortable controls. It offers a range of features for selecting optimal shooting values in real-time, such as shutter speed, aperture, and ISO, while the rest will be selected automatically.

One of the app's unique features is the ability to take a preliminary picture and play with its settings. This allows photographers to see how everything would look if the diaphragm changed. The app also lets users save a snapshot with all parameters, including geolocation, and measures color temperature in real-time. Additionally, it provides histograms in real-time, making it an indispensable tool for photographers who want to experiment with their camera settings.