Nothing has changed. We try to help. But your last tile could be anything, anywhere and be totally different from my last tile. And as I said, we have no tools. We are better at helping if you are missing say 12, or 20, or 50 because we might recognize that a secret room was missed, or perhaps a stairwell. But often the best that we might have to offer is a video of the location.
The Last Tile Finder is an important tool. At some point you will want it, but it is pricey--250 gems, or later in the game 50,000 coins. Also, it can only be used once in 24 hours, although there is new feature to use it a second time by watching an ad.
(Ignore the outlined "Repeatable." That was the only screen shot I have of the PC game with the Shop button.)