I made a couple of improvements, rendering the data even more instantaneous in several ways.
Reload the web page with CtrlShiftR or clear the browser cache on your smartphone to see the updated version of the app. Otherwise, it takes one week for your browser to realise there is an updated version.
You will know to have the latest version when you read the line:
Updated every minute for Xflux; 5 & 30 minutes for other values.