**iBooks (v. 4.10)** 

 - [Athelas][1]
 - [Charter][2]
 - [Georgia][3]
 - [Iowan][4]
 - [Palatino][5]
 - [San Francisco][6]
 - [Seravek][7] -- Sans Serif
 - [Times New Roman][8]

**Related:** here's a [deep dive into the system iBooks fonts][9] (written in 2011, but still relevant). Here's [another "review" of iBooks fonts][10] (also from 2011). 


**Kindle for IOS** (ipad 1 through iphone 6s)

 - [Bookerly][11]  
 - [Caecilia][12]
 - [Georgia][3]
 - [Palatino][5]
 - [Baskerville][13]
 - [Helvetica][14] (sans-serif)
 - [Lucida][15]  
 - [Droid Serif][16]
 - [Open Dyslexic][17]
 - Publisher Font

**iBooks 3.1.3  ipad 1/ios 5.1.1/** 

 - [Athelas][1]
 - [Charter][2]
 - [Georgia][3]
 - [Iowan][4]
 - [Palatino][5]
 - [San Francisco][6]
 - [Seravek][7] -- Sans Serif
 - [Times New Roman][8]


**RELATED**: [Iosfonts.com][18] shows  system fonts for all Apple system devices (although not necessarily iBooks).  


  [1]: http://www.type-together.com/Athelas
  [2]: https://en.wikipedia.org/wiki/Bitstream_Charter
  [3]: https://www.fonts.com/font/microsoft-corporation/georgia
  [4]: https://en.wikipedia.org/wiki/Iowan_Old_Style
  [5]: https://en.wikipedia.org/wiki/Palatino
  [6]: https://medium.com/@mach/the-secret-of-san-francisco-fonts-4b5295d9a745
  [7]: https://en.wikipedia.org/wiki/Seravek
  [8]: https://en.wikipedia.org/wiki/Times_New_Roman
  [9]: http://fontfeed.com/archives/version-1-5-improves-typography-in-ibooks-onipad-and-iphone/
  [10]: http://boingboing.net/2011/12/12/ibooks.html
  [11]: https://en.wikipedia.org/wiki/Bookerly
  [12]: https://www.fonts.com/font/linotype/pmn-caecilia
  [13]: https://en.wikipedia.org/wiki/Baskerville
  [14]: https://en.wikipedia.org/wiki/Helvetica
  [15]: https://www.fonts.com/font/urw/lucida?QueryFontType=Web&src=GoogleWebFonts
  [16]: https://fonts.google.com/specimen/Droid+Serif
  [17]: https://en.wikipedia.org/wiki/OpenDyslexic
  [18]: http://iosfonts.com/