Tingting Yu, a pioneer and an independent app developer in iOS field in Mainland China, started Wolfgang Entertainment Limited in Hong Kong in 2016, two years after his graduation from University of Nevada, Las Vegas with a Master of Science Degree in Engineering. During the start-up period, Tingting worked with the Chief Product Officer Bin Wu and Chief Technology Officer Han Zheng for the first app Triple Red Hot 777 Slots. The apps were successfully launched on Amazon App Store in 2017. The app has also been successfully launched in Google Play Store. The Triple Red Hot 777 has over 50,000 Monthly Active Users, the number is still increasing.