App installation for multi store business

Hi,
I need more information how the application installation is working for multi store business:

  1. When an app is installed via the Poynt App Store (when it will be released) - it will be installed only for the current store, or for all the stores from this business?
  2. When an app is installed remotely by the support - it will be installed only for one store, or for all the stores from this business?