Attention shopping addicts: DON’T READ THIS POST! Ecommerce startup Decide’s new iPhone price prediction app just made it easier to know whether or not to make a purchase. On anything. The technology allows users to scan the bar code of an item that is then analyzed (algorithm mumbo jumbo) to determine if the price will likely fall and when the next model is scheduled to come out. But be careful shoppers (I know you kept reading), the app has predicted prices with 77% accuracy… so there’s a 33% chance you’ll miss a sale.