If you are looking for a "free download" of the Professional edition, be aware that official free versions were limited to the feature-restricted or 30-day trials . Legitimate Free Alternatives & Upgrades
While Studio One 5 Prime is largely replaced, you can still find installers for Studio One 6 Prime to use the core DAW engine for free without a time limit . PreSonus Studio One 5 Professional 2021 Free Do...
Studio One comes in three flavors: Artist, our flagship Professional version, and Prime, a fully functioning free version. pae-web.presonusmusic.com If you are looking for a "free download"
Purchasing PreSonus hardware (like the Quantum series) often includes a free perpetual license for Studio One Professional . pae-web
PreSonus Studio One 5 Professional is a discontinued version of the Digital Audio Workstation (DAW) and is no longer available for direct purchase from the PreSonus Store or major retailers like Sweetwater .