Walmart’s mobile wallet service is now available across all of its 139 stores in Missouri.
The service is built into Walmart’s mobile app and allows Walmart customers to pay via their smart phones. It works on both iOS and Android operating systems.
Walmart launched the Walmart Pay last year on its app, which it says has approximately 22 million users each month.
Forbes reported last year that mobile payment options are expected to grow in popularity, especially among smart phone-loving Millennials. A study last year found that Walmart is the most popular retail store for shoppers ages 24 and younger.