Find out which words are used most often in a gap in your selected text.
'Aid' as in 'source, place to find examples'. No recommendations are given.
tip for http://writefullapp.com
You can also use to it to compare the frequency of two phrases online. e.g., enter this in the search field:
at all levels vs on all levels
(similar to Google fight / Google battle, etc.)
Ludwig doesn't actually find my sentence!
Perhaps it's under the Desktop?