Appy is doing something a little different for the Valentine's Day weekend. Rather than putting their games on sale, they're putting all of their games' in-app purchases on sale for $0.99 each. So every single IAP in all of their games - FaceFighter Ultimate, Trucks & Skulls, Animal Legends, and SpellCraft School of Magic - is $0.99. Even if it used to be $99.99.
It's certainly something different, I'll give them that. I think it'll be interesting to see how this sale pans out.