the Fitbit mobile app
This is an app you can use to monitor your fasting program.
Don't forget to choose the fasting type before starting. It supports 16:8, 18:6 and 20:4 fasting types.
This app is purchasable for $4.99 at the following address : https://k-pay.io/intermittent
You can also buy one of my clock faces, please visit my store here : https://bit.ly/2Ys2q0N
I already have more clock faces in development and you can get them later at no cost if you opt-in for the bundle.
Already purchased ? Go here : https://kzl.io/unlock