The Network app is available for all T-Mobile customers. Just by installing this app, you help T-Mobile to collect valuable information about the quality of the network.
You can do a speed test as often as you like and you can share your network experience - good or bad - easily with T-Mobile. There is also a 'Coverage Diagnosis' in the app, where we collect your coverage data for seven days.

Pay attention! This app uses your GPS location in the background. This can slightly reduce the life of the battery.