So I would say a couple things. Documents from the same collection - concept similar to a table in a relational database - may have different schemas. I am sorry, the self-serve motion will be the natural sales motion to go after the long tail. Ladies and gentlemen, we'll now begin the question-and-answer session. It has a good balance of them and you can make inquiries with java Script. One, it's a very -- mobile apps tend to have a very high rate of change because people are constantly adding new features, fixing bugs, and so they need a platform that can enable them to have high developer productivity. Questions and Answers: Operator Thank you.
Today's conference is being recorded. This may sounds like a stupid distinction, but it explains what happened after that peak: Music industry revenue plummeted, even as the distribution and availability of music skyrocketed: the issue is that people were no longer buying plastic discs, which is what the music industry was selling; they were simply downloading music directly. A replay of this conference call will be available for a limited time at 844-512-2921 domestic or 412-317-6671 international. Free cash flow represents net cash used in operating activities less capital expenditures and capitalized software development costs, if any. Michael, mLab how should we think about the revenue breaking out between subscription and services? Moreover, many of these executives rarely meet with any vendors at all, reflecting one, the importance of what we do and the impact we can have on their business; and two, our credibility as a strategic partner. Please include the following three sections in your description.
We will shortly begin the process of moving mLab customers to Atlas. Tyler Radke -- Citi Bank -- Analyst Great. As we -- when we introduced Atlas as you can imagine, that relationship terminated. Query language is simple and easy to understand. We thank you for your participation. Good file structure as well. On Node, everything is tring to not use callback anymore, but Mongo is still on callbacks.
For example, when you search for a film, we use your search information and location to show the most relevant cinemas near you. Make it as exciting and enticing as possible. So I think people are viewing Atlas as truly a viable platform to run mission critical applications. Second, I would say is that we, as a company, have fundamentally changed a lot over the last few years. And I'll let Michael answer the question about the mix of legacy to Mongo.
Operator Operator Instructions Tyler Radke, Citi. I would like to spend a few minutes reviewing the details of some key wins in the quarter. As mentioned, we're very pleased with our third quarter performance, which reflects strong growth at significant scale. Description Make the description of your talk as compelling and exciting as possible. I would tell you that Atlas is the only Database-as-a-Service offering that's available in 54 regions around the world by virtue of us being able to run Atlas across the three largest cloud providers in the world. Jack Andrews -- Needham -- Analyst Hey. And as we think about just the mix of the business that's tied to legacy replacement, was there any change there? I guess what drove kind of the change in strategy there? Pros: Very powerful and fast, full of functionalities and well documented.
It's easy to get started with. Dev Ittycheria -- President and Chief Executive Officer Right. Cons: When we retrieve data from large table it takes time as this store the records based on key value pair. A replay of this conference call will be available for a limited time at 844-512-2921 domestic or 412-317-6671 international. It has a flexible data model, is easily scalable, provides consistent high performance.
Cons: No stored procedure or functions are supported be Mongo hence it is very difficult to bind complex logics. Lynn and I presented a talk during the first session on Wednesday. Those are all proprietary features that are now available on Atlas, and you'll see that the number of those kind of features grow over time. You had really strong international results this quarter. Operator And everyone, that concludes our question-and-answer session at this time. .
The growth in our total customer count is being driven in large part by Atlas, which had over 6,200 customers at the end of the quarter compared to over 5,300 at the end of the second quarter. Atlas represented 14% of revenue during the quarter, up 4% in the first year -- first quarter last year. They didn't have to worry about getting their internal teams to support the infrastructure. Cons: yeah this has some weaknesses too. Very easy to create collections.