Spell checking points out which words are spelt incorrectly after you have finished typing. (You then have to correct the mistakes).
Auto correct changes the spelling of words that are incorrect as you are typing them.
one is irish
spell check depends on dictionary but auto correct depend on entries which are pre entered
That is the correct spelling for "different".
The correct spelling of the word is "difference" (distinction).
The correct spelling is difference (a distinction, or something changed).
It is spelled: Different
The correct spelling is "between."
The correct grammar/spelling is in between.
Spell check checks and reports misspellings. A Thesaursus gives alternate words with similar meanings. For example: irritated - angry, mad
While spell checking my answer, try spell checking the question.
That is the correct spelling of "differences" (variations, changes).
learn to spell