FastFlow
Fasting tracker that reads your Garmin live
What is FastFlow?
FastFlow is the only fasting tracker that connects to your Garmin and Apple Watch in real time over BLE. Instead of a countdown, it coaches you through six metabolic stages — Fed, Clearing, Shifting, Burning, Cleansing, Renewing — while showing live heart rate, HRV, Body Battery and stress. iOS Live Activity + Dynamic Island keep your fast a glance away. Built for people 40+ who want to work with the body, not against it.
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