The best alternatives to Campfire are Hemingway App, Expresso, and TheRightMargin. If these 3 options don't work for you, we've listed a few more alternatives below.
Hemingway Editor 3.0 is a tool which will make your writing one of a kind! It will not only check your grammar, but it will enrich your text, format it and make it ready to share with the world! You can upload directly to Medium and WordPress or you can make it to any web page by exporting to HTML.
Taleguild is a free web application for writers that helps you write and publish stories and grow your audience. It comes with a minimalistic text editor, autosaving and social network features for audience building.
Campfire provides a one-stop-shop for novelists: organizational and writing tools (Campfire Write), a blog and hub of writing resources (Campfire Learn), and a writing and reading platform for building an audience and sharing your work (Campfire Explore).
This handy system thoroughly guides you through all of the stages, archetypes and storytelling elements of a marketable screenplay. Feed it information about your story and it prepares a comprehensive staging document to import into your screenwriting app.