I have built an iOS app and integration to link Apple Health with Home Assistant with simple setup! You can check it out here:
It has pretty regular syncs (even while your phone is locked), shortcuts to support the syncs and an Apple Watch app to keep updating the data when the iPhone won’t provide it.
There is a monthly subscription fee of $1.99 after a week free trial
Subscription service? No thanks……
Do not spam the forum threads linking to this.
Sorry didn’t mean to spam, I just found most people have ended up giving up searching for an option for this so wanted to get my solution out there 
Your app looks very promising, but requiring a subscription just to sync my health data with Home Assistant? That’s a dealbreaker for me.
I’d be happy to make a one-time purchase, but I’m not willing to pay a monthly subscription solely to integrate my health data into Home Assistant.
It would be nice to create my own health dashboard, but honestly, it’s not important enough (I think for most other users as well) to justify a subscription.
If I understand the technology correctly, the app on an iPhone is needed to transmit the health out of Apple’s walled garden and into HA. I also understand that Apple is squeezing small and open-source developers with fees even giving away stuff through their App Store. It’s not unreasonable to charge a one-time fee to cover the download charges from Apple, but I agree on the subscription charge being a deal-breaker.
With that said, I’m not a potential customer of this app because I don’t use HA’s dashboards for anything…