Therefore, free Office programs, Pages, Microsoft Word and the like do not appear in the following list even if they (partially) bring a spelling and grammar check with them. You cannot “put down” the central theme of the book you have to write it down on paper, in individual files, or in your head. Because where the apps for general word processing score with numerous formatting options, they have no features for sorting characters, storylines, scenes and the like. Whether non-fiction, biography or fiction novel - writing a book is easier with a specially designed program than with Word, Pages or Open Office apps.
Sir Apfelot recommendation: Clean up your Mac hard drive with CleanMyMac Author writing programs for Mac, PC, iPad and Co.