Matthew Hall is trying to stretch his grocery budget and save up to replace his aging car amid rising food prices and overall inflation.

Hall regularly uses an app called Too Good to Go to find steep discounts on food.

Hall and other shoppers are using these services, which connect grocery stores, cafes and restaurants with consumers, to both help solve food affordability issues and encourage sustainability by reducing food waste.

"In the interest of sustainability and keeping things out of landfills, I use it for things that I can use to meal prep to keep costs low," Hall, 25, of Durham, North Carolina, told USA TODAY. "It's a win-win for me and for the business."

Too Good to Go started in Europe in 2016 and now is in 21 countries with 120 million users and 180,000 partners, said Chris MacAulay, vice president of operations for North America. The app is available in 62 U.S. cities, with plans to be in just under 70 cities by the end of the year, he said.