Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
Cydia - An alternative app store for jailbroken devices.
GIMP - GIMP is a multiplatform photo manipulation tool.
AppRecs - AppRecs sorts through reviews in the App Store and automatically helps you filter out inauthentic results.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Fnd - Browse Apple App Store and iTunes on the Web
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.