Junto is team management software that focuses on repeating tasks rather than lots of one-off projects like most task managers do. We've got file sharing functionality (dropbox integration) and screen monitoring as well.
I started the project with my brother because we were both pretty fed up trying to use software like Asana to manage some projects which had 90% of the work being done repeatedly, every day (posting articles, social media management etc) and there was no easy way to track that. There isn't any software that really does a good job at managing repeating tasks, with the user experience being centered around that concept. So we made our own.
We mostly used .NET and AngularJS to develop Junto, as it was the easiest to execute with the freelancers on the project.