OBS (Open Broadcaster Software) is free and open source software for video recording and live streaming.

OBS Remote is an Application that allows you to control some of the common features of OBS from another device, typically a phone or tablet.

Steam Achievements was first written to trial the c# Monotouch development framework (forerunner to Xamarin) for producing iOS applications. At the time Steam did not have a mobile application for viewing your achievements so this filled the gap. I had the added benefit of aggregating achievements with your friends. So you could form a team and help each collect any missing achievements.

The iOS app was archived when Monotouch ended and the Windows Phone is now a distant memory.