there is a free version with limited functionalities. I used it before it became subscription based, but apparently no change, you can get it from the store: http://www.esenthel.com/?id=store

click on binary/monthly (top item), then on the left bottom there is a download option to click, then some links appear for windows/mac/linux... click the windows one and you will get it. later if you buy a licence the same link applies, but the editor verifies your account on startup i.e. you need to be online on starting the editor.

you need visual studio to have. it has an inner code editor, but that uses VS for compilation.