Scratch Link is a helper app that lets you connect Scratch to other devices, such as micro:bit and LEGO robotics kits.
Using Scratch Link requires both Scratch (you can use either the Scratch website or the Scratch app) and a compatible Bluetooth device.
Scratch Link appears as an icon at the bottom of your screen.
Learn about Scratch at scratch.mit.edu
Download Scratch at scratch.mit.edu/download