[phireal]

There's also https://plugandplink.com/, which includes a hardware component to help the person learning (lights on the snake).

The app also includes preprepared videos and lessons (scales, arpeggios etc.) which interact with the hardware component.

My son's been using it with a tutor remotely and it's been working great! Not only that, but he can use the app and the snake to self-guide his practise during the rest of the week.

[sss111]

this is cool and all but doesn't have a full sized piano version..? And $125?! (although probably because its 1st gen)

[phireal]

Yeah, I think for learning, the 4(?) octaves is probably sufficient.

And cost is probably due to first gen, yeah. Plus, hardware development is pricey, I think.