Neptune Apex has that feature as well.
Its still relying on one single computer for everything. Even when using either GHL or Neptune, I never had a problem. Its that whole Murphys law thing
And that is the difference, you have a Choice with GHL. You do not have to have everything plugged into the controller to make it work. With Apex you must have a base unit to operate the modules that are connected to it. That not the same with GHL, you can have if you wish Stand Alone Dosers, Stand Alone Lighting, not controlled by the controller but still manufactured by GHL. Since they are all GHL devices independent of each other by choice you would not need 3 different apps to configure and monitor all the devices but 1 app along with the redundancy of the web interfaces on each device and cloud interface and last the legacy Windows Desktop USB connection. Again you have a choice, how much or how little you wish to integrate with the controller.
The design internally of both Apex and GHL are different when it comes to the controller. GHL manufactures in house, they have videos of them printing the circuit boards for there devices Neptune does not. GHL continues to back support devices without having to purchase a new controller when something new comes out. Example the KH Director could connect to the Profilux 3.1 devices they did not have to purchase the new P4. GHL also continues to support the European market in each release of there products not alienating a portion of the market, so when something comes out they already have all the different power configurations for the device on day 1.
2.5 years ago you really had to hunt for the information on the features and differences between GHL and Neptune systems today a wealth of knowledge exist on both which helps people decided which controller is best for them .