on1[.]com/landing/effects23-free/
ON1 Photo RAW is their current flagship, with a new version 2025 advertised for this fall. Both the giveaway and the current app work more or less the same, with a preview in the middle, preset effects on the left, and a panel on the right where you add & adjust individual effects. It's pro level software that's not hard yo use, but it'll take a short while to get the hang of it. Maybe the star of the show is its AI powered selection tools, though it does lack some of the really basic filters like dust & scratch that have been in most photo editing apps forever. It does include plugins however, so you can still use it within your favorite editing app. Installation isn't bad but it's big -- a slightly over 1GB download, a program folder that's 922MB, and an extras folder that's 563MB.