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https://techcrunch.com/2017/05/04/report-smartphone-owners-are-using-9-apps-per-day-30-per-month/#:~:text=Link%20Copied-,Report%3A%20Smartphone%20owners%20are%20using%209,per%20day%2C%2030%20per%20month&text=Smartphone%20users%20are%20spending%20more,App%20Annie%20out%20this%20week.