PubtreeViewer app for iPhone and iPad

Namo PubtreeViewer is an ebook viewer for EPUB3 and EPUB2 ebooks, the international standard format.
Also, you can optimize and view ebook content that you have made in PubtreeEditor.
Now you can enjoy ebooks on another level.
A.Supports EPUB3 and EPUB2, the international standard
B.Supports fixed layouts, reflowable layouts and a combination of both
C.Securely displays EPUB files without using much memory
D.Supports multiple languages (Arabic, Hebrew, etc.) and vertical writing for Japanese
E.Supports embedded fonts in the EPUB file
F.Provides comic book (image) viewing mode
G.Supports horizontal and vertical view modes for tablets and other devices
H.Supports the page-progression-direction (rtl, ltr) attribute
I.Allows content switching (epub:switch)
J.Supports MathML (only for iOS)
K.Supports Apple iBooks fixed layout
L.Allows user to select the text/font/theme
M.Provides highlighter, memo and search features
N.Uses the standard format for maximum ease of use
O.Can be connected to a variety of platforms via the API
P.Can be connected to a variety of DRM technologies via the API