Consumer spending on AI apps skyrocketed to nearly $1.1 billion globally in 2024, according to Sensor Tower's annual report. This marks a remarkable 200% increase year-over-year, driven by the popularity of apps like ChatGPT and Gemini. Overall app spending reached $150 billion, up 13% from 2023. Users engaged with AI apps for approximately 7.7 billion hours, with downloads totaling 17 billion. ChatGPT alone achieved 50 million monthly active users, surpassing platforms like Disney+ and YouTube Music. Other app categories also saw notable trends in 2024.