Dropbox Users

Launched in 2007

2008: 2,0004
2010: 4 million2
2012: 100 million3
2011: 25 million4
2013: 200 million4
2014: 300 million4
2017: 520 million4

Google Drive Users

Launched in 2012

2012: 10 million5
2013: 120 million6
2014: 240 million7
2017: 800 million8

iCloud Users

Launched in 2011

2012: 125 million9
2013: 320 million10
2014: 500 million11
2016: 782 million12

Resources:

  1. “How Dropbox Scaled From 2,000 to 200 Million Users,” Mashable
  2. “Dropbox Hits 25 Million Users,” Inc.
  3. “Dropbox Hits 100 Million Users Says Drew Houston,” Forbes
  4. “Dropbox Fact Sheet,” Dropbox
  5. “Google Drive: 10 million users served,” Engadget
  6. “With 120M Users, Google Drive Gets Tighter Integration With Gmail,” All Things D
  7. “Google announces 10% price cut for all Compute Engine instances, Google Drive has passed 240M active users,” The Next Web
  8. “Google announces over 2 billion monthly active devices on Android,” The Verge
  9. “Apple hits 125 million iCloud users, as iTunes grows to offer 28 million songs and 45,000 movies,” The Next Web
  10. “Apple at Q3 call: iCloud reaches 320M accounts, 900B iMessages, 125B photo uploads,” 9 To 5 Mac
  11. “How big is iCloud?,” Asymco
  12. “Apple Music passes 11M subscribers as iCloud hits 782M users,” Apple Insider