Build a pet store, vist other people’s pet stores, and create your own breeds.
From the amount of time that the kids spend on the app, I suspect it is fairly addictive. Better than average graphics and cute sounds.
Requires internet access, sends notification of things that are happening in your store, and tries to push your kids to purchase in-game items (with real cash). None of this seems to hinder the fun factor.
Although the game is fun it has limited educational value, and the constant push to pay with real world money might be frustrating for some kids.