https://play.google.com/store/apps/developer?id=Ministry%20of%20Education%2C%20New%20Zealand&hl=en
Epic (free)
Great on line library of books and audio books
https://play.google.com/store/apps/details?id=com.getepic.Epic
All By Myself - Little Critter ($3:09)
The eBook version of the Mercer Mayer story.
https://play.google.com/store/apps/details?id=com.oceanhouse_media.booklcallbymyself_app
The Sneetches ($1.59)
The eBook version of the Dr Seuss story.
https://play.google.com/store/apps/details?id=com.oceanhouse_media.booksneetches_app
The Lorax ($6.49)
The eBook version of the Dr Seuss story.
https://play.google.com/store/apps/details?id=com.oceanhouse_media.booklorax_app
Skoolbo (free)
Multiplatform (Download Mac or PC, Android or iPad) http://skoolbo.com/ support for literacy and numeracy targeted for 4-10 year olds.
https://play.google.com/store/apps/details?id=com.skoolbo.skoolbocoreskills
Montessori Words and Phonics Free
The free version has nine letters unlocked so you can see if you want to invest in the paid version.
Movable letters and sounds- haven't actually tried it myself yet.
https://play.google.com/store/apps/details?id=com.lescapadou.picturespellinglite&hl=en
The Ant and the Grasshopper (free)
Recommended: One of Aesops Fables been turned into a pop-up book
https://play.google.com/store/apps/details?id=kr.co.cluepoint.pop3d