Wal-Mart expands price comparison service

BENTONVILLE, Ark. — Wal-Mart’s Savings Catcher app, previously available in seven pilot markets, is being rolled out in cities across the United States. The service allows customers to compare prices with competitors: if a lower price is found, Wal-Mart refunds the difference. In addition to the geographical expansion, the company noted plans to increase the number of products in the search database, Associated Press reports.