Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
Thunkable - Powerful but easy to use, drag-and-drop mobile app builder.
GIMP - GIMP is a multiplatform photo manipulation tool.
BuildFire - BuildFire is the easiest way for small businesses to build a mobile app in a matter of minutes for iOS and Android.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
MIT App Inventor - App Inventor is a cloud-based tool, which means you can create apps for phones or tablets right in your web browser.
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.