Thank you so much for your feedback! I will definitely improve the search, and will move the subscription form. I still haven't figured out the UI, but I'm improving it.
I will also fix the loading and tags on application cards. I planned not to have them clickable, but only display the application's tags, to not confuse users.
From my experience of running a one-time purchase app https://folge.me it is a challenging work, and that is why I decided to create POA to help developers promote their hard work. There are tons of websites that list subscription apps ( saashub for example) so I didn't want POA to be just one of them.