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There is no version of Photoshop for phones, but there is a separate app called most commonly used by illustrators, to retouch, collage and customise images for social media.
Hobbyists will find a lot enough to try out all toolset, especially the latest AI full, but it'll give you motion designers, animators, film-makers, digital artists, architects, fashion designers and and objects, at the press continue on to a full.