What are some alternatives?
When comparing Codefreebnb and MIT App Inventor, you can also consider the following products
Thunkable - Powerful but easy to use, drag-and-drop mobile app builder.
Webflow - Build dynamic, responsive websites in your browser. Launch with a click. Or export your squeaky-clean code to host wherever you'd like. Discover the professional website builder made for designers.
Android Studio - Android development environment based on IntelliJ IDEA
Zoho Creator - Zoho Creator is a low-code application development platform that helps you build a custom, mobile-ready apps to run your business.
Kodular - Much more than a modern app creator without coding
Appy Pie - Drag & Drop Mobile App Builder