Lunacy uses internet connection even in 'offline' mode

The application starts and maintains connection to the internet at all time while sending and receiving some data periodically during local use (no cloud documents or online content).

I would like to disable the online functionality for the cases where I want to work completely offline. There are also no network or proxy settings available whatsoever, which is a bad practice for modern applications that use internet connection.

The documentation states:

Upon start, Lunacy automatically picks the server with the best latency.


Do I need an internet connection to use Lunacy?

Not always. You can work on local .sketch documents on your computer without an internet connection.

However, you’ll need to be online to access your cloud documents or work with the content in our built-in Libraries.

The issue is that even when working in "offline" mode (local documents), Lunacy exchanges multiple kilobytes per minute with the selected cloud server for the region, and additionally talks to multiple IP addresses (,,, etc.) of Google LLC (AS15169):

If the outbound connections are blocked by a firewall, it still attempts to initiate connections without HTTPS on port 80 every second indefinitely:

This is strange and undesirable behavior that needs to be addressed, and preferably with network or system settings offered to allow changing automatic updates and proxy settings.

System information

  • Windows 10 x64
  • Lunacy 9.0.4


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