Today’s customer-driven convenience economy requires retailers to ensure they can deliver on the promise of on-demand services, whether it be same-day delivery or in-store pickup. As Amazon and Walmart continue to set a high bar for convenience, their major retail competitors are ramping up these services by partnering with companies powered by networks of third-party drivers.

Macy’s, Best Buy and PetSmart are all expanding same-day delivery to additional markets in partnership with crowdsourced logistics provider Deliv. Macy’s and PetSmart will expand same-day delivery to 33 markets, while Best Buy will expand it to 27 in September. Best Buy expects to offer the service to customers in nearly 40 cities by the holiday season.

The fee for same-day delivery service is $8 for all online purchases that meet Macy’s ($99) or Bloomingdale’s ($150) free shipping thresholds and $8 plus standard shipping costs for anything less. Meanwhile, Best Buy is vastly reducing same-day delivery fees, from $14.99 to $5.99, and is adding…