I would totally buy into this, recently i found two really disturbing facts that made me uninstall Instagram, - first that while its open it listens to what you say and then shows you adds based on that (no i didnt search for the same thing or could be an expected interest of me) - second i found that my location was briefly turning on and back off by itself, on one of those on/off and instagram notification arrived, after uninstalling that never repeated.

We need control back on our devices. I friend went so far as to add a physical on/off on he's macbook. I went out of my way to get a mobile i can root easily. There is a market for this.