My iPad book for kids is now live and free in Australia and New Zealand:
What Was That Noise? AU·NZ
No catches, no ads. I wrote and spoke the words, drew the pictures and edited the sound effects; I hope you and your kids like it. There are sharing links on the final page if you want to tell your friends on Facebook or Twitter.
If you’re in the US, UK, Canada or elsewhere, it’s not free, but it’s cheap as it can be ($0.99/£0.59):
What Was That Noise? (international)