Download of DisplayProg 1.2 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The actual developer of this free Mac application is MakeProg Technologies.
From the developer:
DisplayProg is a simple productivity application for macOS that can help the users switch the settings of connected monitors. With DisplayProg, anyone can easily switch resolutions with one click and rotate the angle of the monitor. The tool allows you to select from the 4 last used recent resolutions.