This app is great and does exactly what you would think. TXT and PUZ support is particularly useful, and the autofill function is fairly quick and usually comes up with reasonable solutions. A few quibbles that would net a 5 star review:
1) Support for rebuses and circles is not available.
2) The ability to lock certain cells as "theme" cells so they arent cleared when autofilled answers are would make puzzle creation much faster (because you could reset the autofill without reloading a saved semi blank draft).
3) The clue creation tool is generally very strong, but Ive had at least one make no sense (elementary, clued as "with 24-across, well known line..." when there is no 24-across in the puzzle).
4) An explanation of the autofill hierarchy system would be of great interest, as the settings are currently a little unclear (eg what is optimization, exactly?).
NickBNYC about Crossword Author