Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
Halide - A premium camera for your phone
GIMP - GIMP is a multiplatform photo manipulation tool.
Camera+ - With Camera+ you’re able to use your iPhone to shoot the best photos you possibly can.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
NightCap Camera - NightCap Camera is an exceptional tool that is used significantly in low light and night time to make dark photos looks like they were made in full light, developed in the market by Realtime Dreams Limited Inc.
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.