Yes However, the full game is available and free on that website. The iOS app is just a packaged version of the static site so you can play offline. And the

Yes However, the full game is available and free on that website. The iOS app is just a packaged version of the static site so you can play offline. And the IAP is a piece selector if you wanted to control which piece is next. But basically the game is free when played from that wevsite