A virtual office for remote teams
Tandem is an upcoming app, bringing casual conversations and collaboration back to remote teams.
Their app hooks into all leading communication tools, including Slack, and allows you there to see what your team members are working on, speak to them almost instantly, or collaborate on some pieces of work.
To help with that, they're integrated into over 40 different apps you need to get your work done. Named one of the best video/screenshare apps, definitely a must-try.