T he two great photo editing apps for Android and iOS devices are Snapseed from Google and Lightroom Mobile from Adobe.

Darktable is a free alternative to Lightroom, available on Linux, with powerful masking options and a solid toolkit for image editing. Its UI falls between Lightroom and Rawtherapee in complexity ...

However, there's no free trial but there is a 30-day money-back guarantee. Skylum Luminar is available as both a standalone app and a plugin for other apps like Lightroom, Photoshop, and Photos ...