It does work!!! – Qalvin Legacy Review

This app works if you have an Ant+ dongle that plugs into your phone. I purchased a usb Ant+ dongle and used my Mac instead. You can download the MacOS version of this app at the Quarq Legacy help website. Cheap and easy and, most importantly, it still works as of March 2021.
Review by Frank Sheed on Qalvin Legacy.