90% if what I want is something to fix punctuation and spelling. 10% is fixing awkward wording. Mostly just fixing stories without having to wait for another person to fix things.
Regarding grammarly, the free version: I may have missed something, but in between my last extended usage (18 months ago) and recently, the free version of grammarly has “nagwared” a huge number of its features into non existence.
I understand those (myself included) who were so impressed with the free version a while back that we sung it’s praises. (I was a web user only.)
Today, yes, it’s better than nothing. But it, the free version, feels more like an interactive ad for the paid product now than a worthy contender. I’m not even sure a new user of the free version would walk away impressed, it’s so hobbled.
Sure, they’re entitled to try to make a living. And do they ever try!
I’ve been using grammarly recently and it has been enough to get me through. I still use an editor from here of course so its not a perfect answer for software.
Hemmingway App has its quirks, but works as a quick check against wordy or clunky sentences. Sometimes it gives objectively bad advice, so you need to know when to ignore it.