(BTW, I am in no way affilliated with the developer)
Actually, Mr. choose-to-remain-anonymous...
This program ADDS two or more differently exposed images together and spreads the difference of two exposures (not high dynamic range) into a wider gamut AND a higher dynamic range. This can and is being done. It is called remapping. It's like downgrading to 8 bits from say 12 bits, in reverse.
NO...you cannot do this with only ONE image - that is - taking say an 10-bit image to 12, 14 or 16 bits. However, you can remap tones and recompile the sum of two or more images into a format that does have a higher dynamic range. this program apreads EXPOSURE ranges.
It is not the same thing as using a SINGLE 16 bit image for anything. You can only get so much RANGER of exposure from a single image, BASED ON ONE EXPOSURE. You still expose one shot at a specific F-Stop. A 16-bit image, film image, whatever, is still either a bit over exposed or underexposed, no matter what its "dynamic" range potential, due to the nature of nature's incredible spread of light from bright sunlight to the deepest shadow, and we expose for light or dark NOT both ranges. This program spreads EXPOSURE range, and puts them into a higher bit image. Perhaps you need to re-educate yourself, hmm?
That said, it would sell better at half the price, but you have to charge something to cover the invitable support. Hoever, the low end version is FREE, so why complain?