It's early days, but if you can work Android then it does what it says on the tin. However it dose seem to eat up battery life.
Highly recommend1 minute calculating option for the widget, would like more options, maybe dial/slider 4 accuracy or frequency/measurent
Installed hrs ago, & still waiting. My battery isn't going to sit for hrs until it starts depleting, so I shouldn't have to wait hrs either! Uninstall
I wish there was a setting where you can disable the icon on the top right, love this app