Lunden, Ingrid (June 8, 2015). "iTunes App Store Passes 1.5M Apps, 100B Downloads, $30B Paid To Developers To Date".
2017년 3월 31일에 확인함.  Lunden, Ingrid (2015년 6월 8일). “iTunes App Store Passes 1.5M Apps, 100B Downloads, $30B Paid To Developers To Date”. 《TechCrunch》.