The original Steam Link app let users stream PC games on Steam to a mobile device within their home, but Steam Link Anywhere lets users stream games from their PC to any compatible device with internet service, excluding Apple devices.
Apple rejected the original Steam Link app due to "business conflicts," while the app went on to see a release on Android.
The upgraded Steam Link Anywhere will now only be available on Android, Raspberry Pi, and Steam Link hardware, starting today as an early beta. Valve says that players will need a good upload connection for the host computer and a good network connection for the mobile device.
Following Apple's rejection last year, Valve pointed out that there are many other remote access-style apps that are allowed in the App Store, so it was unclear why Apple was blocking Valve's app. Since that time, Sony has released its own game streaming app, allowing PS4 owners to stream and control games on their iPhone or iPad, from anywhere with a Wi-Fi connection.
Similarly, Microsoft this week has detailed work on its Project xCloud game streaming initiative. The service aims to provide Xbox owners a chance to stream their favorite games from the console to a mobile device, although iOS devices haven't been mentioned yet. "True console-quality gaming will become available on mobile devices," Microsoft CVP of Gaming Cloud, Kareem Choudhry, said. "Providing the 2 billion-plus gamers around the world a new gateway to previously console- and PC-exclusive content."