Tap the box below, then tap the scan text key on the iPhone keyboard (bottom left, looks like a camera in a box) and point the camera at the receipt. The receipt text pours in by itself.
Check the items
Fix names, set how many days a thing usually lasts your family (lifespan), and when it goes bad (expires). Known items are filled in from past trips. Uncheck anything that is not a grocery.
ItemDaysExpires
Quick add one item
Items land here when their expiration date passes. Toss the food, then clear them or send them to the shopping list.