App store analytics company App Annie has been boosted by a US$6 million Series B investment from a number of venture capital firms.

The funding will be used to accelerate App Annie’s product development and to expand into new app stores around the world. The company plans to grow its presence in the US, China and Japan and expand the number of employees in its San Francisco and Beijing offices.

“Within the next year, our customers can expect to see a whole host of new feature and platform integrations for App Annie products,” said App Annie CEO Bertrand Schmitt.

The investment has been led by Greycroft Partners with contributions from e.ventures, Infinity Venture Partners, Kii Capital, angel investor Jarl Mohn and Series A lead investor IDC Capital Partners.

According to App Annie, 80 of the top 100 grossing iOS publishers globally use its products to provide data on their apps and to provide analysis of trends taking place in the iOS, Mac and Google Play stores.

In addition App Annie Intelligence provides premium market data for software and hardware makers such as Microsoft and Nokia.

“As the marketplace for mobile apps and digital goods continues to explode, App Annie is incredibly well positioned to become the de facto analytics and intelligence standard across all platforms,” said Greycroft Partners’ Dana Settle.