HubSpot doesn't have a desktop app, but you can generate one using Chrome's shortcut. 

Here are the steps:

1. Open the HubSpot page you wish to create a shortcut for. 
2. In your browser, click the three dots icon > More tools > Create Shortcut
   
3. It will open a popup. 
   Specify your shortcut name and enable the Open as window boolean option.  
   Then click Create. 
   
4. Voila! Chrome will then open HubSpot as a separate window. For future use, you can double-click (if you're on Mac) or single-clock for Windows the Shortcut app to access HubSpot directly instead of opening your Chrome browser.