Hidden Alphabets Hidden Number

I can’t click some of the letters right away I have to click other ones then I can go back them. That’s not too big of deal but the other thing is that on level 3 I couldn’t find the S and finally had to use the hint and even when it showed me where it was I could not see it there at all!!! Also WAAAAYYYYYY to many ads!!!! Literally EVERY time you click something, like even just the back button, an ad pops up!! No reason for so many ads that you can barely play the game!!!!