The founder of a mobile advertising startup, acquired by Blackstone in 2019, notes the evolution of integrated applications like China's WeChat, which has over 1.3 billion monthly active users and combines messaging, gaming, photo sharing, video conferencing, and mobile payments. Current payment solutions like PayPal operate independently, lacking the desired seamless integration. Regulatory challenges hinder the development of similar all-in-one apps in the U.S., despite interest from tech giants like Facebook and Elon Musk, who aims to transform Twitter (now X) into a comprehensive "everything app." Telegram has also introduced USDT stablecoin payments and is pursuing a similar goal despite past regulatory setbacks. The successful launch of a master app could unlock significant revenue opportunities, though rigorous regulatory scrutiny is anticipated.