A new report from LendingTree reveals that 25% of buy now, pay later customers are using these services to purchase groceries, up from 14% last year, signaling that more families are struggling financially.To help save on groceries, the Ibotta app offers free grocery deals, allowing users to upload receipts for cashback. Another app, Fetch, lets users snap a photo of their grocery receipt to earn points toward free gift cards to places like Walmart, Best Buy, and Amazon.Additionally, signing up for Betty Crocker emails can provide up to $250 in free coupons for items like canned food, cereal, and yogurt, along with recipes.