As a man, I would certainly buy it. If my wife and I can't have kids, then it could be either of us with an issue. And I'm no more inclined to go to and pay for a lab test than she is, I imagine.

Happy to chat with you about this. I've been through 4 IVFs and have severe male factor infertility, so sadly I know this space all too well. Mens market is trickier - the existing method for home testing for men is too clunky. You need to produce a sperm sample into.. a test tube. Then put it in warm water. Then wait. This is too dirty and too much work.

There is a roundabout way to do this without a sperm sample. Pen prick, blood in a container, ship it out to a lab and then do a karyotype test on it. That'll pick up around 50% of infertility cases. To cover the rest, you'll need to do a sperm test. Also, the 'hook' that gets men in has to be more than just 'check your sperm count'. Men mostly couldn't care less about their sperm count. Something like 'check if you're at risk of passing on a rare blood disease' is a much better hook.

> So I doubt there is as much of a market for a male version

Sperm count has been cut in half in the last 40 years in the West. Sperm motility and morphology has also seen precipitous declines, along with increasing DNA fragmentation issues.

Male factor infertility is definitely a problem, but even attempting to discuss environmental estrogens is "men's rights activism" so we ignore it. To the extreme psychological detriment of women who tend to accept blame for fertility failures.

There is a problem in developed countries - that goes far beyond warm testicles - that we are ignoring. For reasons.