Downloading the app to install in your phone is currently only possible via this website. Only android phones are supported for now.
In order to install the downloaded app file, you will need to go through a little bit of inconvenience if you haven’t installed an app from the browser before. If you just tap in the downloaded file, it will most probably tell you that it is not allowed to install unknown apps from this source. You need to go to Settings from there, “Allow this source“, and then install it.
If you know more about these things, this might be useful for you:
# SHA1SUM
60d5df888f726048d4f023543f7c1a9be990882b uMetric.apk
# SHA256SUM
6259dfd9c0d4c34bf41befffd9c02d6a8b2076cb1583098db14e67b2ec088a12 uMetric.apk