Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
Working Copy - The powerful Git client for iOS
GIMP - GIMP is a multiplatform photo manipulation tool.
Source iOS - The best git client and code editor for iOS.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
GitKraken - The intuitive, fast, and beautiful cross-platform Git client.
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.