This has been my occasional tinker target for ~5 years now, starting in the early days of Covid. The objective is to drag letter tiles within certain boundaries to spell four common American-English words.
It hasn't got ads or anything, it's just supposed to be fun for its own sake. If people happen to like it, I might add an option for folks to make a small, one-time payment to unlock access to the archive.
I'm happy to hear any feedback, or about any shortcomings that you might discover.