Sensor Tower report: AI app usage and spending surge, ChatGPT reaches 1 billion monthly users
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Summary
Global time spent on generative AI apps is projected to more than double year-on-year to 36 billion hours in H1 2026, up from 17.2 billion hours a year earlier, according to Sensor Tower's State of AI 2026 report. Consumer spending on AI apps is also accelerating, with global in-app purchase revenue expected to exceed $4bn in H1 2026, up 36% compared with H2 2025. ChatGPT remained the leading AI assistant and became the fastest mobile app to reach one billion monthly active users.
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Key quotes
· 3 pulledGlobal time spent on generative AI apps is projected to more than double year-on-year to 36 billion hours in H1 2026, up from 17.2 billion hours a year earlier
Consumer spending on AI apps is also accelerating, with global in-app purchase revenue expected to exceed $4bn in H1 2026, up 36% compared with H2 2025
ChatGPT remained the leading AI assistant and became the fastest mobile app to reach one billion monthly active users
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