While Walmart has historically denied using "individualized" pricing (charging two people different prices for the exact same item based on their income), they do use behavioral targeting [1]
Members of Walmart+ often see different "final" prices due to exclusive discounts, rewards (Walmart Rewards), or waived shipping/delivery fees that aren't available to guest users. Walmart uses AI to offer personalized promotions. You might see a "Rollback" or a "Just for You" offer on an item you’ve viewed multiple times or purchased previously, effectively changing the price for you specifically via a targeted discount. Like many e-commerce giants, Walmart may also offer "first-time app user" discounts or "win-back" coupons to specific customer segments.
https://www.walmart.com/ip/Mainstays-Basic-Indoor-8-78-Black...