Time it took to reach 1 million users: Netflix: 4 years, 11 months Twitter: 2 years Pinterest 1 year, 4 months Linkedin: 1 year, 3 months Snapchat: 1 year Facebook: 10 months Zoom: 9 months YouTube: 8 months Dropbox: 7 months Spotify: 5 months Instagram: 2 months ChatGPT: 5