AppyPie AppMakr - AppMakr is a browser-based platform designed to make creating your own iPhone app quick and easy.
Bizness Apps - Create your own app or become a reseller and build apps for others
AppMySite - An automated no-code app builder
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!
AppYourself App maker - App maker designed by AppYourself is a popular app builder platform that gives you the opportunity to create feature-rich Android, iOS, and PWAs apps in minutes.
Dropsource - Mobile development platform for building native iOS & Android apps