TL;DR - Completely free, no ads, a basic game of Solitaire. I periodically play Solitaire. I had no desire to pay for the game and I got tired of seeing ads. I was in a boring meeting one day and decided to use my favorite AI to create a Flutter Solitaire game for me. Ninety minutes later (after a few tweaks), it was ready to go. If you want a simple Solitaire game with no ads and no other costs, this is the one for you.