Same here, but I'm 25 and the tool guessed 20,21,27,27. I guess the average is correct-ish. In my case, the old guesses are when there is bright light or when m

Same here, but I'm 25 and the tool guessed 20,21,27,27. I guess the average is correct-ish. In my case, the old guesses are when there is bright light or when my head is slightly turned. The younger guesses are with regular room brightness 100% front face.