Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
Pixlr - Pixlr® makes it easy to transform everyday images into stunning works of art.
GIMP - GIMP is a multiplatform photo manipulation tool.
Retrica - Discover yourself with Retrica
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
360 Camera - Capture 360 photos and videos with your Android device, 360 Camera is one of the most leading camera apps that allows you to enjoy all in one photography experience.
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.