You are downloading the 4G Speed XAP file v18.104.22.168 for Windows Phone. 4G Speed is a free and useful Productivity app: **This app will not make your data connection fast. It provides a handy way to check the data connection speed**Slow on your data connection and ... You can now download the offline XAP file to install & try it.
Download Locations for 4G Speed 22.214.171.124 XAP file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline XAP File To Install It Any More.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline 4G Speed XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.