It kind of depends on your writing process. When I'm working on fiction of any sort I prefer stripped down programs like Fast Notepad (a free Android app) I can teach it new words, and it has the two edged sword of an autocorrect/autofill function but otherwise it stays out of my way and lets me put words down as fast as possible. I personally write fast with little regard to punctuation etc... and then edit repeatedly, that's my process and it works for me. If you want something that checks all your grammar etc... as you write then you need something more sophisticated than I have ever personally found useful for story writing. I use Microsoft Word for work and formal material like CVs etc... and it does preform all those checks live as you write and it has a number of free pretenders that do the same.

It kind of depends on your writing process. When I'm working on fiction of any sort I prefer stripped down programs like Fast Notepad (a free Android app) I can teach it new words, and it has the two edged sword of an autocorrect/autofill function but otherwise it stays out of my way and lets me put words down as fast as possible. I personally write fast with little regard to punctuation etc... and then edit repeatedly, that's my process and it works for me. If you want something that checks all your grammar etc... as you write then you need something more sophisticated than I have ever personally found useful for story writing. I use Microsoft Word for work and formal material like CVs etc... and it does preform all those checks live as you write and it has a number of free pretenders that do the same.