Thanks for the feedback. We're working on adding more themes! If you're interested in submitting a theme here's a link to the documentation:

https://www.notion.so/tomyumco/Sketch-Theme-Documentation-c9c6e9b91e514e69b88c3b3ddebba0a3

I'm doing some split testing with the site - there is a variation that hides the preview button. I'd be happy to share the themes with you through email dami@tomyum.design

I also changed the split test to have the preview button for 90% of visitors - try refreshing

The first version of the web app has 3 themes but we're planning on adding more themes in the future. I would recommend purchasing an unlimited download account so take advantage of the launch discount.

I was thinking of including a link to a page that answered this question. This file didn't take 5 minutes to create.

I'm not 100% sure you watched the video on the landing page but this isn't a basic sketch file with some buttons. Nested symbols done properly in Sketch takes time and in my opinion that merits a cost to download. If you disagree, that is fair.