Speed test is a free application that lets you test the speed of your Download Speed Test,connection. The download speed will appear after the Ping is measured. Download speed lets you know the transfer speed of content over the network to your device. The download metric is important to tell how quickly you can stream from sites like Netflix.TMIS.Speed studies your internet connection to measure the speed between your device and a server. You will receive data about your download, jitter, ping, and upload speeds.