Marketing automation and monetization firm Tapjoy is celebrating its one billionth app install today. Because, you know, that’s a big number.

The San Francisco company said it recently delivered its one-billionth app install as part of its user acquisition advertising capabilities. It’s a sign of how big some of its customers and partners have become in the ever-expanding mobile-app economy.

Tapjoy said that in the last six months alone, it has driven more than 80 million installs for app developers. That means it has used ads such as videos to motivate users to install apps. Of the 1 billion installs that Tapjoy has driven since 2009, 53 percent were on the Android platform while 47 percent were on iOS. The most popular device for installs was the Samsung Galaxy 3.

Tapjoy’s Video-to-Install product has seen the largest growth, increasing usage more than 85 percent from the last half of 2014 to the first half of 2015. Its Video-to-Install product offers advertisers the ability to market their app with a rewarded video that provides consumers with a full sense of the developer’s product. Consumers who chose to install an app after watching the video are considered high-quality users. Those users can drive superior lifetime value metrics for the app developer.

“Providing a solution that results in consumers downloading more than a billion apps is a remarkable milestone and a testament to the company’s ability to evolve with the times and stay on the leading edge of app marketing,” said Steve Wadsworth, the president and CEO of Tapjoy, in a statement.

“As app developers have become more sophisticated with user acquisition strategies, their focus — and ours — has shifted to not only driving downloads but gaining highly engaged and valuable users, which is exactly what our Rewarded Video-to-Install, User Engagement, and other products are designed to deliver. We’re thrilled to cross this milestone and look forward to continuing to drive quality user acquisition for app developers and revenue for publishers who use our marketing automation and monetization platform.”

Tapjoy’s software development kit is used in more than 270,000 apps with a global reach of 520 million monthly active users.