I'm only able to access the demo from March of 2019 and the full version from July of 2019 and wanted to see if there was a more recent version available as the store page says it was updated 24 days ago. 

Having the same problem

same here

Pretty sure it's just that the page was updated, not the game files themselves. Final release is coming in June according to this post: https://subscribestar.adult/posts/104208