Not really it just allows you to use both your wifi and your mobile data at the same time to download a large file. It combines your wifi and network data. So depending on your wifi and T-Mobile network speed it could possibly double your speed.
If I've helped you in any possible way, Make sure you hit Thanks!
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?