As well as providing all the functionality at makecode.microbit.org, the WIndows 10 app has a few additional features that will work on micro:bits with whose firmware version is 0241 or newer:
- Automatically program your micro:bit over USB, without needing to drag-and-drop the file onto the micro:bit drive.
- Directly read serial data from your micro:bit for data logging and other fun experiments
All micro:bits sold since December 2016 will automatically work with the features above. For older micro:bits (for example those that were part of the UK free school drop) please see the online help
If you are having trouble with the app then you can raise a support ticket with us.