The choo choo apps are free on Itunes for a presumably limited time. These are definitely worth a download, my young one was pretty chuffed with their park app. They are fairly similar apps it must be said, but they are free.
Choo Choo home https://itunes.apple.com/au/app/choo-choo-home/id1076029512?…
Please follow the appshopper link to get the rest as I am too pressed for time at the moment to post individual links:-
Ta op