Secret, the iOS and Android app that lets you share messages anonymously, is working on an integration with the popular Russian social network VKontakte (VK), The Next Web has learned.

The partnership will involve more than simply offering VK as a new option in Secret’s share window, however. We’re told that the company wants to add “a new dimension” to who users interact with and receive messages from. It sounds like Secret wants to pull people’s contacts from VK – not just their address book – and notify them when one of their friends posts a message.

Secret branched out of the US in April and is now available worldwide. As data from App Annie shows, the app has proven to be quite “sticky” in Russia; the iOS version was ranked fourth overall in the App Store on May 28.

Secret is a massive hit in Silicon Valley, with plenty of rumors – many of which are dubious at best – about future acquisitions, hirings and closures. The firm now needs to prove it can continue that success with a broader user base; the early signs look promising, and new integrations with prolific social networks could give it a welcome jumpstart around the globe.

Read Next: Secret expands worldwide as it launches on Android with a dedicated friend stream

Secret | App Store | Google Play