When you use grammarly, they put some kind of advert for youtube, so when you watch youtube videos, it will stop and their advert will start. Note, this is not a youtube ad, this is an ad directly from them.
The browser extension is a must have, but I regularly pass my emails through this, or draft them in it just to catch dumb mistakes and make noticeable grammar improvements on the fly
I started using Hemingway from it's first iteration. First for my uni assignments and since then I've used it for almost everything. Slide decks, presentations, social posts, campaign copy, you name it. I even used it for this review! haha
Simple, unambiguous, clutter-free writing made easy for anyone. Hemingway is a godsend for people like me that, completely unintentionally, wax poetic about stuff that can be said in a few words.