Have you any apps which you can run speed tests, for Android and/or iOS?
If not, can I suggest a few features for an app or apps for you to look in to and release;
A Speed Test App which will test ping, upload and download.
Location Based Results so you can compare your results with others in your area.
Perhaps integrate the Quality Meter results or features.
I currently use the Samknows App but this just gives results, perhaps offer these sort of tests in your app.
I think you once had an app but everything went quiet.