Docpress is described as 'generates websites from your project's basic documentation; that is, at the very least, a README.md file. It also supports multiple Markdown pages in docs/' and is an app in the Development category. There are more than 10 alternatives to Docpress for a variety of platforms, including Self-Hosted solutions, Linux, Mac, Windows and Online / Web-based. The best alternative is GitBook, which is free. Other great apps like Docpress are Sphinx (Free, Open Source), MkDocs (Free, Open Source), Docsify.js (Free, Open Source) and mdBook (Free, Open Source).
GitBook is a tool for building beautiful books using Git and Markdown. It can generate your book into multiple formats: Static Website: This is the default format, it generates a complete interactive static website.
MkDocs is a fast, simple and downright gorgeous static site generator that's geared towards building project documentation. Documentation source files are written in Markdown, and configured with a single YAML configuration file.
docsify generates your documentation website on the fly. Unlike GitBook, it does not generate static html files. Instead, it smartly loads and parses your Markdown files and displays them as website. All you need to do is create an index.
A documentation generator that builds HTML output based on Markdown files. Supports Markdown specs and offers a wide set of custom components using Markdown-like syntax. Builds Reference Source documentation for .NET projects (more added soon).