StoryChief will work with the built-in spelling and grammar checks of your web browser.
As from September 20, 2019 on:
We support Grammarly now! From grammar and spelling to style and tone, Grammarly helps you eliminate errors and find the perfect words to express yourself. Powered by Ai.
Just add their free Chrome Extension to your Chrome browser and you are good to go.
If you use Ginger:
You will probably see odd things in the editor, such as this example:
This is caused by the Ginger extension. If you disable it, StoryChief will work correctly.