OneSignal - Customer engagement platform used by over 1 million developers and marketers; the fastest and most reliable way to send mobile and web push notifications, in-app messages, emails, and SMS.
Sketch - Professional digital design for Mac.
Airship - Mobile marketing solutions across all major mobile platforms.
Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
Webpushr - World most trusted web push notification platform. All browsers (Safari, Chrome, IE, Firefox, etc.
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.