Woogles is nice.
The board looks like a regular scrabble board, but the special squares are indicated only with colours, and don't say 'Triple Word Score' etc. like on the real Scrabble board. When you hover over a square, you see the bonus as '2x letter' etc.
This behaviour is fine for experienced players, but not for children or beginners, especially those playing on iPads, which don't have 'hover'.
I made a userscript to fix this:
https://greasyfork.org/en/scripts/508773-woogles-bonus-label...