Most have just 16% black squares, per the standard definition • In addition a new grid of sizes up to 8x8 can be generated on-the-fly by the app, meaning unlimited games to play • Many 1000's of clues, both straight and general knowledge • Choose between US or UK English spellings • General knowledge questions tailored to your country (currently US, UK, Australia and Canada) • Ability to save and reload games, so several games can be played at the same time • Numerous aids in case you get stuck, e.g. validate word/letter, reveal word and even a built-in crossword solver to show potential matches • Easily flip between different crosswords, just like a crossword puzzle book • Also includes crosswords in French, German and Dutch