Can't Kahui app be used?

It works.

Kahui APP is a practical credit card discount inquiry and financial management app, which provides information inquiry of credit card discounts, promotions and discount merchants based on geographical location, so that users can grasp the first-hand credit card discount information at any time. Kahui app provides wealth management products, making it easy for users to manage their finances. With the personalized setting and filtering function of Kahui app, users can easily find exclusive high-quality information.