Thanks for your patience - it took me quite a while to finish the Polar integration.
You can now sign up for CityStrides or connect existing accounts with Polar.
If you’re connecting it to an existing account, that can be done in the Activity Trackers section of your Settings page.
One big limitation is that Polar does not provide access to any data prior to connecting services. They do offer a full account export, but I don’t know what’s provided in that zip file.
While my local testing worked out well … things don’t always go perfectly in real life.
If you decide to connect your account, let me know how it goes - good or bad - and I can keep an eye on your account to make sure things go smoothly.