I didn't get what the site did, it looked like it was trying to sell me something. Then I saw the button 'Download' and that turned me off. I don't want to inst

I didn't get what the site did, it looked like it was trying to sell me something. Then I saw the button 'Download' and that turned me off. I don't want to install any software. I cannot see how this is supposed to save me time or money as claimed. The sign up page took 15 seconds to load so I gave up at that point. Online note taking isn't a problem I have that needs a solution. Doesn't google do this already and integrated into my goole suite of tools?