B4X - Cross platform development tools for native iOS, Android, desktop and server applications.
Webiny - The Enterprise CMS platform that you can host on your cloud
Appcelerator Titanium - Appcelerator Open Source
Kodular - Much more than a modern app creator without coding
Apache Cordova - Platform for building native mobile applications using HTML, CSS and JavaScript
Bubble.io - Building tech is slow and expensive. Bubble is the most powerful no-code platform for creating digital products.