"Calcium" editor is a programming environment to learn coding by blocks and text. If you are familiar with block-based programming such as Scratch, it is easy to begin coding in the app. Drag a block and tap "Run" button to execute a program. This app shows Python-like code simultaneously. A breakpoint can be set by tapping a line in the code.

For developers:
This app is based on open source projects. Thank you Blockly team!