Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
GIMP - GIMP is a multiplatform photo manipulation tool.
F-Stop Media Gallery - Image and video organizer.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Camera Roll - Simple Gallery App for Android, with lovely Material Design.
Krita - Krita is a professional FREE and open source painting program. It is made by artists that want to seaffordable art tools for everyone. Concept art. texture and matte painters, illustrations and comics.
A Photo Manager - Manage local photos on Android: gallery, geotag with photomap, tags, find, sort, view, copy...