Vending machines that are scattered across subways in Asia can be used with the WeChat app. When users want to buy a drink, they can use their WeChat app to get a discounted price on certain items.
Tencent has been seeking ways to monetize its wildly popular chat app without compromising the user experience through the incorporation of payment options. Users have links in the app to tie their personal account to a specific online banking account.
By simply shaking or using a QR code from the vending machine, this will trigger the transaction from the vending machine and users will then receive their paid item, charged via WeChat.