Do you have any prototype already?
I cannot understand well how token works on health apps?
What does it replace of the present services? Too new product is risk-high, I think.
We have a functioning platform to find the best personal trainers with 500+ fitness professionals and a partner gympro.com with over 3000 personal trainers using its client management tool. We do not have an MVP with the blockchain functionality integrated.
I would suggest to take a look at a real life example: a hugely successful app with more than 2 million users that was more popular than WhatsApp after launching in the UK, Sweatcoin. The difference is: we are not building our own app, but let the users continue using what they love and we are not only focussed on measuring steps, but all information that is trackable