5 ms·Free with Adsby aswinmohanme 8y agoFree with Adsdrdaeman 8y agoI believe when asking for "proprietary or free?" it's usually about end-user freedoms, not monetary cost. "Free" as in "free speech", not as in "free beer".Sylos 8y agoFree as in https://www.gnu.org/ https://www.gnu.org/ Basically open-source.