What is Casual mode?
Casual mode removes the daily limit. Same 6-column grid, same addition-and-subtraction rules as Mini, but you can play one puzzle after another without waiting. Finish a round, tap New Puzzle, and a fresh equation loads immediately.
Stats are tracked (games played, win rate), but there's no daily streak counter. Casual is for practice. If you want to build muscle memory for Nerdle patterns without burning your daily Classic or Mini attempt, this is the right mode.