Fonts marked as 100% Free on DaFont. Can they be used to create a logo for a company. I normally purchase a license to install a font. No documentation with the font - the 100% free one. Please clarify how to contact the font author have tried emailing no response. The font in question is Retro

Is Retro Stereo Wide (Listed as 100% Free on DaFont) free for commercial use. I wish to use it on a logo. Do I need to pay to license for a logo, have tried emailing Gus Thessalos
but no reply?