Is there a good definition of what Bridge will compared to Pro?

I have see a really high level view but not clear on Community Apps, whether they run ok.

ie The Secure App that enables drivers for Secure Devices, Thermostats/boiler controllers.

The ability to attach multiple Hue Hubs locally


You can start here: Homey (cloud / bridge version), a selection of available apps (WIKI)


Thank you very very helpful