Gil Hou

I was confused too but it's an app called "Tayasui Sketches" available on Apple and Android (scroll down the home page)

The correct link to the video is: https://tayasui.com/sketches/sketches-video.html

I'm not clear on how (and if ) handwritten notes work in Flow, is OCR an option and can you search notes and organize them. The Moleskine studio site doesn't provide details.