This is an Android app available at Google Play and the Amazon App Store in two versions:
Wally Kitten Free
It is an illustrated children's book my Mom wrote and published.
The app is like an e-book, though written as an app because:
How to Use the App
The app is simple and self-explanatory - works much like an e-book but doesn't need a reader.
How the App was Made
I took the publisher PDF files and used GIMP to create high resolution JPG pages for this app. My Mom read the book while sitting in my tuned audio room being recorded by my pro studio mics (a matched pair of Rode NT1-A). I separated the audio into pages using Audacity and converted the audio using high quality MP3 (LAME VBR v1). Then I wrote some Java code to wrap it all into a simple Android app.