Use APKPure App
Get Network speed indicator old version APK for Android
Display a status bar notification indicating the network speed
This simple to use app gives you an indication of the current network speed by displaying a status bar notification.
An icon, always visible in the status bar, shows if there is no network activity, some network activity or more network activity for both outgoing and incoming network traffic.
The status bar notification shows the network speed in numbers or optionally as graph.
This app doesn't require any special permissions.
The graph needs to be purchased, but you can try it for free for one day.