Lulugirl, I haven't been able to find the paid version either.
I think companies sort of go with what works best in the app store.
So iPad/iPhone you'll see all three variants
- Free with Ads
- Free with In-App Purchases.
Android seems to be very tailored towards Free with Ads. There are also lots of Free with In-App Purchases type apps.
Perhaps WWF company found that paid sales for its apps were so low that it wasn't worth the effort.
If I can find a paid version I'll let you know.
Also, I also dislike ads in apps too.
Thanks! I was hoping I had just missed finding a paid version. I tried to contact Zynga but that didn't work out. I really like the NC paid version. What is an In-App purchase?