Sketch - Professional digital design for Mac.
Emojination - A simple design tool combining emojis and modern aesthetics.
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
emojione - The finest emoji you can use legally
Adobe Illustrator - Adobe Illustrator is a vector graphics editor.
App Icon Template - Royalty free app icon creator for iOS, OS X and Android