Some readers are wedded to their eReaders, while others love the feel of a book in their hands too much to ever stray from print. For the rest of us, however, print vs. digital is more about context than loyalty.

Maybe you generally prefer print but are loath to tote around a fat hardcover on your daily commute. Or you’re Kindle-inclined but were gifted a hard copy of a book. Wouldn’t it be nice if you could simply pay for content, not format?

There are so many readers today who want to read their books in print but also enjoy the flexibility of reading on their Kindle, Nook, or iPad when that’s more convenient. Enter Vearsa’s new partner Shelfie by BitLit: a free eBook bundling app for iOS and Android that allows publishers to offer an eBook edition to readers who already own a print copy.

If you’re a publisher, you might be worried about Shelfie cannibalizing your eBook sales. But the reality is that less than 1% of people buy both print and digital editions of the same title, so Shelfie doesn’t represent any lost revenue opportunities. On the contrary, this model works to promote your print sales and makes it more convenient for readers to access your books, increasing the likelihood of word-of-mouth discovery.

Shelfie makes it possible for publishers to offer their eBooks to readers for free or at a discount, with or without DRM, and enables them to bundle titles without changing how they print their books or requiring in-house support. Publishers also receive the contact information of every person who bundles one of their books—incredibly valuable data for sales and marketing teams.

Interesting in finding out more? Check out http://www.bitlit.com/.