I just realized the iOS version of the puzzle solver was no longer available as of iOS 11.
I updated the code to be compatible and also adjusted it so it will work more nicely on iPads and in landscape mode for those who care. (I also made a new icon for the app -- I'm really proud of it )
Ads have been removed from the free version as well.
It's also now available in the Amazon app store for kindle fire users.
-JJ