Easily worth (the modest $9.99) upgrade which makes the app even more accessible--I paid to have the white (instead of black) font because my browser is in dark mode and I couldn't read the temperatures very well--however--totally worth it! More info than I could ever use and it's all super sleek with easy to read fonts, very intuitive, all-around great deal for a one-time purchase.. Have an entire day (and week) of weather forecast from your browser's extension bar just by clicking the *current temp* icon which includes radar with multiple layers; The upgrade gives excellent benefits & customization.