Swift Playgrounds - Learn serious code on your iPad in a seriously fun way
Thunkable - Powerful but easy to use, drag-and-drop mobile app builder.
Code-Free Startup - Learn how to build real apps without coding
MIT App Inventor - App Inventor is a cloud-based tool, which means you can create apps for phones or tablets right in your web browser.
Swift AI - Artificial intelligence and machine learning library written in Swift.
Bubble.io - Building tech is slow and expensive. Bubble is the most powerful no-code platform for creating digital products.