Microsoft Word
Google Docs
Adobe Acrobat DC
Wondershare PDFelement
Pages
Foxit PhantomPDF
Dropbox Paper
Conga Document Generation
SHAXPIR
Dabble Writer
Scritika
SmartEdit Writer
StoryMill
Manuskript
Novelize
Campfire Pro
Microsoft Word SHAXPIRI love the product! Love using it, and it works a treat for me. However, if something goes wrong, the customer service is very poor. There are two versions of SHAXPIR. A free version, and a paid version, yet support is the same - almost non-existent! - It seems to be a 'one-man band' who is the support, perhaps he should have some more help?
Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.
Dabble Writer - Writing software for novelists.
Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.
Scritika - Scritika is advanced-level writing software that helps the writer to tell their stories in a creative and smart way, and it encourages you to compose the stories quickly.
Wondershare PDFelement - All-in-one PDF editor
SmartEdit Writer - Plan, write and edit your novel scene by scene