StrapPress is a Bootstrap 4 WordPress starter theme. Earlier versions of StrapPress (Bootstrap < 4) were all paid versions. I have decided to make the latest version of StrapPress free which will allow you to start your WordPress theme development projects with a powerful Bootstrap 4 theme.
On the flip side, if you are a member of MVPWP there is a ton of blocks and plugins that have been developed to extend the functionality of StrapPress. Easily build out custom pages, portfolio sections, different layouts, and much more.