If you have any issues please contact me over email or file a new issue on bitbucket.
https://bitbucket.org/kmanpro/litpub/issues?status=new&status=open

Lit Pub is a fast EPub reader that is intended for studying/annotating EPubs.

FEATURES:
- EPub sections vertical scroll but you can swipe left and right to navigate sections or use Table Of Contents to navigate.
- It uses native rendering so it is much faster than other EPub readers.
- It also keeps to the original formatting that the EPub author intended.
- Highlighting in 5 colors
- Underlining in 5 colors
- Popup footnotes like iBooks
- Create Notes on an annotation
- Image popups