What are some alternatives?
Thunkable - Powerful but easy to use, drag-and-drop mobile app builder.
MIT App Inventor - MIT App Inventor | Explore MIT App Inventor
Bubble - Don't hire engineers! Bubble let's you build an app entirely visually
AppSheet - AppSheet enables users to create mobile apps instantly for both OS and Android.
AppsGeyser - Appsgeyser is the easiest to use DIY native mobile app creation platform.
Appyet - Create stunning Android apps.