Plot Factory - Online story planner, organizer, and writing application.
YourQuote - YourQuote is an interactive mobile app that helps you to write stories, quotes, screenplays, poems, and books.
World Anvil - World Anvil is a worldbuilding tool for Authors, Storytellers and worldbuilding lovers.
Pure Writer - fast, smooth, fluid, at any time, never lose content, Markdown, super reliable
Plottr - The #1 rated visual book planning and series bible software for professional and aspiring writers.
JotterPad - JotterPad Writer for Android — Turn your thoughts into text. Go about your creative writing without distractions, write to your hearts content...