I started with sketch up when it was free but started to pay for it as soon as I had learned it and decided it worked for me. I have been buying Sketch up pro for Many!! years now they have change the business model to subscription every time I want to open a drawing It takes several minutes to “verify my subscription” . I can’t open my drawing if their internet site is buggy. The drawings are my work product and it is bullshit that I am not allowed to use them even when I have paid for a two year license.Because Trimble wants to check my license every day and their ■■■■ isn’t together enough to do so.