Outline cares about your notes; it learned how to check spelling and how to count words!
There is no need to spend your time looking for misspellings or mistakes, Outline will help you here.Once it sees an incorrectly typed word or a word it cannot recognize, it`ll underline this word to draw your attention.
Right-click on the word to access a list of possible correct variants, or click Ignore Spelling in case you want your variant to be left.
You can also set up an automatic correction in Preferences.
Line, Word and Character Counting
Is word number what matters as well, then the counting function will be useful for you. Just take a look at the bottom of the page to see how many words you have typed so far.
For more information left-click on it: number of lines and characters will show up!