But what about being a chat bot made it better? Being a chat bot doesn't make it do anything different than the competition, it's just a different interface. Being novel doesn't make it useful.

I suspect there are niches that you could profitably target. For example eating habits. Or exercise habits. Or studying habits for preparing for an LSAT exam.

In all of these cases the niche allows you to go much deeper with the product to address specific pain points.

You can also go much deeper with your advertising and marketing strategy. You can also reach out to specific podcasts and to specific blogs for marketing exposure.