The cloud storage market size is estimated to grow from USD 23.76 Billion in 2016 to USD 74.94 Billion by 2021, at a CAGR of 25.8% from 2016 to 2021.However, there is one interesting pattern that we are seeing. Despite this growth, the market share of Dropbox is declining whereas both Google and Microsoft are growing. There are no clear indicators why Dropbox is losing to these two companies. But there is one pointer: both Google and Microsoft offer much more than simple remote storage and file sync. Google Drive and OneDrive are more than cloud storage solutions, they are collaborative platforms.