It would appear that On1 is giving away their Effects 10.5 suite. Follow this link to download your free copy.
For a limited time only, you can get ON1 Effects 10.5 (originally released in 2015) absolutely free! Effects 10.5 is a full-featured photo effects app for Mac or Windows with hundreds of presets, filters, and editing tools to help you create any look you want! It’s a $59.99 value and yours for free with no limitations. You can use it as a standalone app or as a plug-in for Adobe Photoshop or Lightroom.