Mobile applications saw a record number of downloads and revenue in the first quarter of the year, according to a new report from app store analytics firm App Annie out this morning. Across both iOS and Android, downloads grew by 15 percent year-over-year to reach nearly 25 billion worldwide – a figure that includes only new downloads, and not re-installs or downloads from prior quarters.

In addition, consumer spend on apps also grew 45 percent year-over-year in Q1, to reach over $15 billion across iOS and Android worldwide. However, the amount of money developers are making from their apps is even higher than this, as App Annie isn’t including the additional revenue generated from in-app advertising here, or revenue from mobile commerce applications.

In terms of the increased revenue figures, App Annie chalks up much of this growth to China’s impact on the market, and specifically its growth on iOS. The country is currently number one by iOS consumer spend, and the chief contributor to iOS revenue growth. It’s estimated China will remain in that position through at least 2021, the report said.