Although I agree that it should probably better state it's products intention; I don't see why you would think it's a software, as the graphics show an external keyboard and it heavily advertises larger screen space.
Have they changed the website since you commented this? It is immediately apparent to me based on the hero image that this is a physical keyboard.
Oh I see now, it's a phone case with buttons at the bottom outside the phone. No this wasn't obvious. It wasn't even obvious that the picture is a photo rather than an artists' conception or a rendering. And the site is still terrible.