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Nik Collection vs XnRetro: catalog facts
Nik Collection	XnRetro
Paid Commercial software from DxO.	Free Free download from the developer's site.
Windows, macOS	Windows, macOS, Linux
Dedicated black and white conversion tools Film look and creative filters	Many color, light and frame effects in one place Basic adjustments such as contrast, saturation and vignetting
Paid software Works as plugins inside other editors	Focused on retro effects rather than general photo editing Closed source
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License: Proprietary
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.