Looking for a remote solution for Simultaneous control of several android devices

[AC Question]

Hi, I'm looking for a service that will let me access multiple android devices over lan and launch an app on them. I don't need to control each one individually. Once the app is launched, I need to be able to do specific stuff inside it. In this case play and pause videos. In essence, what I need is a teamviewer but for multiple simultaneous control. Do any of you know of such a service?
Thanks in advance