Publishing guide
InstallableBook vs. EPUB.
Understand the difference between a downloadable ebook file and a directly hosted installable reader.
The practical difference
EPUB is a widely supported ebook file used by Kindle, Apple Books, Kobo and other readers. InstallableBook is a hosted web reading experience with its own cover, icon, interface and installation path.
Which should you choose?
EPUB is best for established ebook stores and reader libraries. InstallableBook is best for creators who want a branded, direct-to-reader experience they control.
InstallableBook is additive
Many publishers can use an InstallableBook alongside PDF, EPUB, Kindle or print editions rather than replacing every existing format.