Precio Justo Maps Grocery Prices by Neighbor

Field notes

The project asks shoppers to photograph shelf labels rather than type prices, then says it extracts product, unit, and price information with computer vision. Its validation layer includes image fingerprints to catch reused photos, travel-time checks for impossible reporting sequences, and human review of flagged cases. The homepage reports 304 contributions across 40 days and says the catalog covers 70 essential products, with contributor rewards planned through Yape or Plin.