The Astonishing Rise of Dropbox

January 20, 2010 at 7:01 pm 1 comment

Today San Francisco-based Dropbox announced reaching the 4 million user mark and the hiring of Adam Gross, formerly of SalesForce, as SVP Sales and Marketing.  The user milestone is remarkable considering that the company touted 3 million users in November 2009 and 2 million in September 2009.

The announcement comes despite an overall decline in traffic to Dropbox’s sites in December according to Compete (in November 2009 the company acquired and discontinued the use of  Interestingly, Compete reports only 2.3 million unique visitors since September; adding 2 million registrants in that time would indicate either 1) errors in Compete’s measurements, so extreme as to be toxic, 2) massive growth coming from iPhone or other peripheral sources, 3) a conversion rate so incredible it has never before been seen on the web.

Dropbox users are given 2 GB of storage for free, 50 GB for $9.95, or 100 GB for $99.95.  Both paid tiers, at $0.20 per GB per month, closely mirror the $0.15 per GBM storage cost of Amazon S3, which the company uses as its storage backend.  Loading transfer and request costs, margins for paying users are even slimmer.  Presumably the company is betting on both paid and free users using far less capacity than their plans allow or gaining economies of scale from Amazon (who drops storage pricing as much as 75% at higher tiers of storage).  Storing 2GB for 4 million users equals 8 petabytes, which would cost roughly $600K per month for storage alone.  The company previously raised $7.2 million from Sequoia Capital and Accel Partners.

More Dropbox coverage here.


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1 Comment Add your own

  • 1. jpwhitehome  |  April 23, 2010 at 9:04 pm

    I have the 50GB plan from Dropbox and I am currently using 1% of that limit. I could get by with the free plan, but I want their pack-rat unlimited file versioning and undelete. So their bet that most users won’t use much of what they are entitled to may be a good bet.


    One feature that users are asking for is selective sync. If they add that feature then my usage will go WAY up as I start to use it as backup for certain key files that I don’t want replicated across all my systems. I’d love to upload a ton of music I can link to my Moozone account to give my Droid access to a huge music library 🙂 I may end up having to go to the 100GB plan.

    Can’t wait for the android app 🙂


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