Talking Photo apps

Alternatives to Photo Speak!

YAKiT Kids

YAKiT Kids is on the app store, and it's free (as of 2-16-14). See it here.

Make sure to get the Kids version!

YAKiT sample

iFunFace

iFunFace is available in the free basic edition, or the paid pro version which adds props and more. You can use photos of real faces or characters, as in the sample below. Check it out here.
iFunFace sample