Network Speed is app & widget showing current
[✔] Downlink and uplink network speed
[✔] Downlink and uplink data volume
[✔] Mobile network type GPRS - LTE
[✔] or WiFi SSID name
on Notification bar.

How it works:
[✔] Tap on widget to add/remove notification
[✔] Tap on notification to start/stop metering
[✔] Monitoring can be stopped when screen is off
[✔] Mobile network is metered by default
[✔] WiFi is metered when it is connected