Cart Range adds a tab to the online store. A shopper enters an email, then sees today's price and the lowest and highest price the store has recorded for each item in the cart. The range starts the day the app first sees that item. The store owner sees each email, product, and price in the app.

• Shoppers enter an email before the range is shown.
• The tab shows today's price and the recorded low and high.
• Each email, product, and price is saved as a lead.