There was a period (about 6 months?) that ST3 was in "private" beta, and you indeed had to buy a license to use it. For a while now it's in "open" beta, meanin

There was a period (about 6 months?) that ST3 was in "private" beta, and you indeed had to buy a license to use it. For a while now it's in "open" beta, meaning everyone can download and use it.