Linear - Streamlined issue tracking for software teams
Bizness Apps - Create your own app or become a reseller and build apps for others
Distiller - Distiller's hosted continuous integration platform takes the pain out of mobile development through automated build, test, and deployment of your iOS apps.
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!
BugHerd - BugHerd: The Website Feedback Tool for Agencies
Dropsource - Mobile development platform for building native iOS & Android apps