After FrostbiteXIII's request for apps on my Peppa Pig deal I thought it would be a good idea if all us parents pooled our knowledge and recommended free apps that their kid's enjoyed.
Please post recommendations in the comments and I'll add them to the description.
Ideally recommendations should be;
A) Apps your children have used. Please no random recommendations.
B) Apps that are free. Apps with microtransactions are fine as long as they aren't a requirement to fully enjoy it. For example If a colouring app requires you to pay to unlock enough colours to paint a rainbow it's not really "free".
C) Full games are preferred. Demos are okay but please be wary of point B above. The last thing us parents want are for our kids to nag us into paying for something we wanted for free.
This is just for iOS apps so feel free if you want to setup a Android, Blackberry or WP8 thread.
Links and descriptions will be posted in the first comment.