Run TheSky Professional on macOS, Linux, and Windows, on up to six computers per operating system.

Enjoy the freedom of installing and running TheSky™ on multiple operating systems while maintaining its familiar look, feel, and functionality.

Supported operating systems include macOS, Windows, and Linux (including AMD64, ARM64, and ARM32 distributions).

For the power hungry, the Multi-OS+ option licenses you to install TheSky™ on up to six different computers per operating system.

If you’re an academic institution and need a more extensive license, please email us about educational licenses.

Please Note:  In order to the operate Multi-OS+ module, you must first purchase and install either TheSky™ Professional or TheSky™ Imaging Bundle (which includes TheSky™ Professional). Both are sold separately.

Optional $100.00 each following year for the subscription benefits

Visit TheSky Change Log page for a list of all the improvements, changes and fixes in each release.

If your software subscription is active, download the latest TheSky Professional update by logging in and visiting My account > My Downloads, then downloading and running the update installer.


TheSky Professional Multi-OS+ Module

When you purchase a license for any one of the following products:

  • TheSky Professional (any OS) 
  • TheSky Imaging Bundle (any OS)
  • The Paramount MYT/MX+/ME II Software Suite
  • Universal Bundle

The Multi-OS+ module provides downloadable access to TheSky Professional and permits installation of TheSky and any optional modules you have purchased, on up to six (6) computers per operating system.

Important Pre-Purchase Information

  • A current subscription to TheSky Professional (any OS) or TheSky Imaging  (any OS) or TheSky Fusion is required to have download-access to the latest macOS, Windows, and Linux installers.
  • The Multi-OS+ module license is for private, personal, single-user, non-commercial, non-military and non-educational use only. Site licenses for educational institutions, defense contractors and other applications are sold separately. Please contact Software Bisque request more information.
  • The Multi-OS+ module is included as part of the Paramount Software Suite and Universal Bundle products.
  • The Multi-OS+ module offers an annual software subscription that must be active to access the latest installers and updates for each operating system.

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