iBooks is the most popular free app in the Apple App Store this week according to Apple. followed by the Kindle app, then the Audible app. Tips & Tricks iPhone Secrets joins the list at No. 4. Also new to the list this week is Architectural Electronic Systems’ new app for Edgar Allen Poe’s short story The Raven.

Explore these 20 free apps and find out what kind of literary apps succeed in this crowded marketplace. 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 iTunes so that you can check out the apps.

20 Top Free Apps (Books Genre)

Wednesday March 21st

1.  iBooks

2. Kindle

3. Audible

4. Tips & Tricks – iPhone Secrets

5. Nook by Barnes & Noble

6. The Walking Dead

7. Quotes

8. Goodreads

9. Wattpad

10. Weird Facts 1000

10. Books- 23,469 classics to go

11. Comics

12. Audiobooks

13. Books- 23,469 classics to go

14. Barnes & Noble

15. Bible+

16. OverDrive

17. Kobo

18. Love Quotes 500

19. The Raven by Edgar Allen Poe

20. Dirty Sex Jokes