Celtx VS Amazon Storywriter

Scrivener - Scrivener is a content-generation tool for composing and structuring documents.

Manuskript - Open-source tool for writers.

Final Draft - Use your creative energy to focus on the content; let Final Draft take care of the style.

yWriter - Free writing software designed by the author of the Hal Spacejock and Hal Junior series. yWriter6 helps you write a book by organising chapters, scenes, characters and locations in an easy-to-use interface.

Storyline Creator - An elegant tool for authors to write, organize and visualize their stories.

Trelby - The free, multiplatform, feature-rich screenwriting program!