So far I found the fastest pipeline to get good results is to use Google Photos editor as a Google One subscriber. Most useful tools are Al sharpen, portrait blur, portrait lightong (not always good). Basic color/brightness tools work great.
Although I do miss some functionality like blur/pixelation brush (for anonymysation of faces and/or car plates), adding a png/ image overlay, colour replacement (and overall better grading tools), curves.
What's do folks use for photo editing on Android?
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I have a Galaxy S23 Ultra. Samsung's built in tools can do a lot thesedays. Especially if you download Galaxy S Enhance, which uses AI to enhance, erase items, remove reflections etc..
But I also really like Photo Studio Pro, which I purchased many years ago and am still using.
I have others, but these two are the ones I am keep going back to. Obviously if you don't have a Samsung the first one doesn't help you.
I also recently bought IMGMI from the Skylar team. It's very quirky (no undo?!), so I'm not going to universally recommend it, but it is a very powerful AI tool and quite fun to play with, especially if you want to play with sky and clouds. To illustrate what I mean here are 3 photos of mine which I played with in IMGMI that took 2 mins to make: