Hey! So I found this recently and have been using it quite a lot to help with writing.
It's an App called Hemingway and pretty much just helps with EVERYTHING.
Its a writing checker that:
-checks all spellings for you
-checks if you’re over-using adverbs
-picks out over-complicated sentences
-suggests replacements for over-complicated phrases
-picks out the passive voice
-tells you how readable your text is (Grades/College level/etc)
-calculates reading time
Just thought people might interested in it.
Also, if you don't notice straight away like I did, look to the right hand side of the page for your grade, and the reasons why that's your grade (plus explanational tips).