Due to the big amount of questions we have to mention it again. Pulsoid does not work with Apple Watch(as well as with other watches).
Right now we can't add Apple Watch due to technical reasons and that is why we do not have any ETA for this.
You can check out Stromno app created for streaming heart rate from the Apple Watch.
We recommend you choosing the BLE Chest Strap monitor:
If you would like to get notified when Pulsoid starts working with Apple Watch fill in the support request.