GoodBarber - GoodBarber is a mobile app creation platform.
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Siberian CMS - Siberian is an Open-Source and Free App Maker. Unlimited Push Notifications. Unlimited features. Fully Customizable. Download it and build your own app now!
GIMP - GIMP is a multiplatform photo manipulation tool.
Dropsource - Mobile development platform for building native iOS & Android apps
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.