Difficulties

Every step up adds a row and a column to the board, one more play, a bigger bag and one more exotic square type. The rack stays at 7 tiles throughout.

The difficulties compared
DifficultyBoardPlaysBagPremium squaresExotic typesDigraphs per bag
Easy6x6515521
Medium7x7620831
Hard8x87301342
Brutal9x98402053

What is gated or paid

Nothing. Every difficulty, the largest board included, is free to play.