MoPub made rival ad buyers compete for space inside mobile apps. Then AppLovin paid $1.05 billion for the business and gave its customers 90 days to move to MAX.
CloudX is an AI-native ad monetization platform for mobile publishers, built by the founders of MoPub and MAX. It rebuilds the programmatic supply-side stack so autonomous AI agents - not manual ops teams - can run auctions, manage price floors, and optimize revenue, with auction integrity verified inside Trusted Execution Environments. The company launched out of stealth in November 2025 with a $30M Series A led by Addition.