I have watched quite a few video's from Jordan at Artisan Electrics. Here he is talking about the Zappi.
They are quite pricey out the box, and electricians aren't cheap so the price isnt that shocking but, bargain basement it ain't. All chargers qualifying for the grant must be smart these days.
Have to say I have done 16,000 miles in an electric car and haven't got a home charging point. Would be nice if I had, but no intention of shelling out for installation of a smart charger, or even a dumb one.
General info re Electrical side of Charger Installation