This app creates a semitransparent overlay of a picture on top of the phone's camera preview. This allows the phone to be positioned in the same location and orientation as when the original picture was taken. Currently I use this app as a quick way to align the antennas for my software defined radios with a fixed point, but there can be other uses as well. This app also has the capability to select a certain color to be transparent for "green screen" style overlays. The transparency can be applied to the image or the live camera preview. This app has no ads or in-app purchases and collects no data. Source code is available on GitHub: JS-HobbySoft/CameraAlign The source code is licensed under AGPL-3.0-or-later. The app icon was created with Stable Diffusion.