iBooks, Kindle, Nook Most Popular Free Apps

Apple’s iBooks app, Amazon’s Kindle app and Barnes & Noble’s Nook app lead the Top Free Apps in the Books category of Apple’s App Store today as of 1:30 PM ET.

Social literary community Wattpad’s app is currently at No. 4 and the Marvel Comics app is No. 5, followed by Chegg, a textbook rental company’s shopping app at No. 6.

Audible’s audiobook app Audible is No. 7 and Lexcycle’s Stanza app is No. 8. Barnes & Nobble’s Bookstore app and Kobo’s eReader app round out the top 10 at No. 9 and No. 10.

What are your favorite eBook apps? Add them to our best digital reading apps of 2010 list.