don't waste money & time... Just buy the $25 theme from themeforest... it's more efficient and the design is much better... if you find page builder other options would be much bette such as pagefly, gempage , shogun and so on
The goal of the app is not to install a generic theme. It aims to allow you to create themes from scratch and have full customization. Themes from the Theme store or third-party websites like ThemeForest are plug an play. The goal of the Sktch.io Theme Builder is to allow you to make a custom theme that goes beyond what is available with generic ones without writing code.
We hope this clarified the difference between using our app and installing generic themes.