This app allows users to maximize the hardware optical and digital zoom capabilities of their built-in camera while taking photos. In addition, it offers a unique feature called mega digital zoom, which allows users to zoom beyond the maximum hardware values and capture objects in the far distance.

The app works by utilizing the digital and optical zoom capabilities of the built-in camera. It allows users to access the maximum values of both digital and optical zoom. Once the maximum hardware values are reached, users can then utilize the app's own digital super zoom feature. This feature utilizes an advanced zooming algorithm called bilinear interpolation, which enables users to take photos from even further distances. The maximum value of the mega zoom feature may vary depending on the camera model installed in the user's phone.

In addition to the zoom features, the app also offers various settings that users can adjust depending on their preferences and phone model. These settings include the ability to apply different camera effects such as negative or sepia, choose the type of scene (e.g., beach, landscape, party), and adjust the white balance settings (e.g., daylight, shadow).

Overall, the main features of this app include the ability to maximize the hardware digital and optical zoom, access a unique mega digital zoom feature, and adjust camera effects, scene types, and white balance settings.