Installing the Spresso iVersionIt Decaf (free forever) edition enables the basic features for no cost. No time limit trial, no ads, and no frustrating buy-up alerts. To enable advanced features in the Americano (or Espresso) edition, you'll need to buy a license for the platform (Windows or macOS).
Step-by-step installation instructions are available at http://leadingswmaniacs.com/spresso-app-installers.html. This includes instructions for unlocking, running the app automatically upon log-in, and <gasp> even removing the app from your system.
And read the What Is This No-Nonsense License Thing About? article to learn more about our Jethro-easy licensing. (We think you'll like it, Jethro Bodine sure liked it!)