PiPCamera【Overlay and Silent】is an Android-based camera app developed by mizmon21. This app is designed to capture images with an image overlay and silent mode, and it is free to use. The user can adjust the transparency of the overlay image with the slidebar located on the left side of the display. The available image file types are png, jpg, and bmp.

In camera mode, users can capture images by tapping the shutter icon located on the top-right of the display. They can also set exposure compensation, flash ON or OFF (except for some models), select front-facing or back-facing camera (except for some models), and other mode settings. The captured image is saved in sdcard/mizmon21/PiPCamera. In viewer mode, users can view the captured image, move it by dragging, reduce it by pinch in, and expand it by pinch out. Users can also share the image by clicking on the menu and selecting share.

Please note that this app requires access to the internet for ads delivery. The app developer advises users to observe the laws, rules, local laws, and manners while using the PiPCamera app.