did not test it because did not know who runs that web-site or who did make that software.
The domain of the IntegerScaler author was registered
15 years ago. Both IntegerScaler and the site are by the same person. He is also the author of the comprehensive “
Nonblurry integer-ratio scaling” article about the whole scaling issue, and one of a few people mostly active in the 4-year-long 1500-message integer-scaling
thread on the nVidia forum.
Also to get easy updates
Fwiw, IntegerScaler is written in C++ and built statically with no external dependencies like 100 megabytes of .NET framework or anything else, so the update process involves just extracting the small 280KB archive that contains two executables (32/64-bit) and readme.txt. IntegerScaler also supports Windows 7+ while LS is for Windows 8+.
and those nice extra features like anti-aliasing
Antialiasing has nothing to do with what integer-ratio scaling is intended for, and the freeware IntegerScaler status makes its author free of the need for bloating it with unneeded or rarely used features.
If someone has tested both programs, it would be interesting to read comparison. Like is there differences in FPS or game compatibility etc.
There may be no performance difference because both apps use the same magnification mechanism built into Windows. That said, IntegerScaler only uses full-screen-output mode which provides the most smooth experience, while LS apparently
also use the less performant (noticeably jerky, based on Windows Magnifier) windowed-output-mode for the purpose of supporting multiple displays.