Hey sure… sorry it’s not well explained at this point.
Spark Actions is for Spark and Spark 2 chips specifically. This is because Spark chip memory cannot be updated. Spark Actions basically configures our servers with what to do when someone scans a Spark or Spark 2.
Apex does not require this because you can deploy the NFC Sharing applet and update it with whatever you want. If you are interested in the “digital card” functionality that Spark Actions has, you can use Apex Manager to achieve the same thing for Apex.
The Spark applet for Apex is meant to act as a mutual auth token for the VivoKey API (Authenticity API - VivoKey Technologies) and of course, that means you can use Apex with any service we will deploy in the future which relies on the VivoKey API (the upcoming VivoKey Cloud service for example).
I hope that makes sense. I will look to update the VivoKey site to better explain things.