Top 20 Free Book Apps of the Week

iBooks was the most popular free app in the Apple App Store this week, according to research from AppData, Inside Network’s data service that tracks app and developer leaderboards.

Explore these 20 free apps and find out what kind of literary apps succeed in this crowded marketplace. To prepare for Mediabistro’s upcoming Publishing App Expo on December 7-8, we spotlight the top grossing book apps, the top paid Android books apps and the most popular free apps every week.

Below, we’ve listed the top free iOS apps of the week–linking to App Data’s research about each individual app, including historical charts, developer information and download details.

20 Top Free Apps (Books Genre)

August 31, 2011

1.iBooks iBooks
2.Kindle Kindle
3.NOOK for iPhone from Barnes & Noble-Read 2 Million Books, Free Books NOOK for iPhone from Barnes & Noble-Read 2 Million Books, Free Books
4.Audible Audible
5.Audiobooks Audiobooks
6.1 million FREE Books – Read Kobo eBooks! 1 million FREE Books – Read Kobo eBooks!
7.Unlimited Free Books – Wattpad eBook Reader Unlimited Free Books – Wattpad eBook Reader
8.B&N Bookstore B&N Bookstore
9.Google Books Google Books
10.OverDrive Media Console – Library eBooks and Audiobooks OverDrive Media Console – Library eBooks and Audiobooks
11.Bible+ Bible+
12.Love Quotes 500 Love Quotes 500
13.Comics Comics
14.TouchyBooks Kid’s Interactive Books TouchyBooks Kid’s Interactive Books
15.앱스파일 음모론 앱스파일 음모론
16.Sex-Facts 500 Sex-Facts 500
17.Marvel Comics Marvel Comics
18.The Cat in the Hat - Dr. Seuss - LITE The Cat in the Hat – Dr. Seuss – LITE
19.Weird Facts 1000 Weird Facts 1000
20.Disney Comics Disney Comics

More detailed stats are available at AppData Pro, Inside Network’s data service supplying performance data, including historical user data, audience demographics, and company information for developers and applications.