Do we really need a cellphone app for that?

Recently, at a food store, I noticed that a grocery item was significantly reduced when purchased with their proprietary digital app reward points card. To be clear, the only way you could purchase that store item at the reduced price was by installing the corporate online digital cellphone app/card. A food store that traditionally guaranteed the lowest prices on basic food items is now forcing customers to adopt a proprietary app to get the best basic food prices. This policy change would undou