WikiSummaries is described as 'Is in wiki format, meaning any user could edit content and add new book summaries. thousands of books summaries are available, all of which are free to access and read. Downside is that summaries are usually short with a few paragraphs' and is an website. There are more than 25 alternatives to WikiSummaries, not only websites but also apps for a variety of platforms, including iPhone, Android, iPad and SaaS apps. The best WikiSummaries alternative is BookWatch, which is free. Other great sites and apps similar to WikiSummaries are Littler Books, Blinkist, Uptime - Learning and Shortform.