Best writing app out there! Rated 5 out of 5 stars
Slickwrite is a wonderful program no writer can go without! In addition to the style error and detection features common to software of this kind, there is a flow meter, showing the rhythm and flow of your writing on a sentence and length level. It also has a graphical breakdown of sentences by type, and the stats section provides a wide swath of metrics and analysis.
For the price, the best software for authors and editors out there.