This app badly needs instructions. I had to figure out out to use it for Wordle by guesswork. I entered what I thought would be a useful guess (🟩🟨🟨⬛️⬛️, with a known correct letter for the first, 2 known letters for the next 2, and ? for the last 2) and did not get the correct word in the list. In this case, one of the 🟨 was actually in the first position, but I also had a 🟩 for that letter, so had no idea where to place the 🟨 (or what color to make it). This is a nontrivial case; perhaps I should’ve made the overlapping 🟨 a ⬛️ in another position. Since this comes up fairly often, if there is a method for dealing with it, that needs to be explained in the instructions. It seems like the app should’ve found the word but didn’t; it only found the word by moving the 2 🟨, but then it added a bunch of extraneous words to the list since there doesn’t seem to be a way to exclude letters.
Also needs a feedback link as well as instructions. It’s a good start but needs work.