Fountain is not an app. It’s not even really a file format. It’s a simple set of straightforward rules for writing a screenplay in plain text. If you opened a text editing app, or even email, and started typing something that looked like a screenplay, chances are, you’re using Fountain.
INT./EXT. BLOOM HOUSE - (PRESENT) DAY The front door opens to reveal Will and Josephine on the porch with their bags. REVERSE to Will's mother Sandra (53), surprised and a little annoyed. SANDRA How did you get here? WILL We swam. The Atlantic, it's not that big really.
When you’re ready to share or print your work, or move to another writing tool, use one of the growing list of Fountain apps to preview your screenplay with industry-standard formatting, export it to HTML or Final Draft .FDX, or print it to PDF.