The application is already available for download, thanks to a random Twitter user (@FrontTron)who shared out the link. The only catch is that you ought to have upgraded to One UI 4 to have the application. Otherwise, it can be accessible also via the Galaxy Store sooner.
Features of the Expert Raw App
It also supports the 16-bit linear RAW DNG picture format, which is an uncompressed image format. The standard parameters of a pro mode are ISO, shutter speed, focus, and white balance. Those who value a histogram will find this helpful.
