How to transfer my eBooks to my iPhone?

I have an eBooks app on my android Samsung epic 4g. I was wondering if there was a way that I can transfer my eBook files to my iPhone? Via PDF file or something like that. I can't find that exact app on the iPhone app store so I can't just download that app and sign in. Any suggestions?

I don't know some software can install iPhone to transfer ebooks.
but i know some software in PC.
you can use a pc to transfer your files.
if you want transfer eBooks or PDF to iPhone, you can use some iPhone transfer software.
just like ePub to iPhone Transfer.

1. You can put your eBooks to Dropbox and then lauch Dropbox on iPhone.
Dropbox has versions for PC/IOS/Android and it's free.

2. You can also copy your eBooks to your computer. Then rely on free Calibre to directly send them to your iPhone.

refer to this guide (method 2):
http://www.epubor.com/transfer-downloaded-ebooks-from-computer-to-nook-tablet.html

IPhone Manager from 4easysoft.com can transfer various files like eBooks, music, movies or photos between iPhone and pc or iTunes or Apple devices.