[mitchellst]

Article sums it up as: there hasn't been a better WebMD because the costs of making one have been too high, but new advances promise to draw those costs down, so the author is founding.

Costs might be a factor. But revenue is a bigger one. WebMD and Healthline have flourished because advertisers have an incentive to underwrite them. Symptom checkers for health professionals do well, too—hospitals and medical malpractice insurers have an incentive to pay for provider-focused tools. A comment brings up the UK NHS site—sure, it makes sense that a national health system would have a strong incentive to help people self diagnose.

Do end users have a similarly strong incentive to maintain a subscription to a service like this month after month? Selling direct-to-consumer subscriptions at scale is hard. I wish you the best, but it's tough business.