So apparently the team of imbeciles and as likely as not, chinese communists at tmobile are forcing users to install a phone app in order to perform simple configuration of a wireless internet router.
This as opposed to simply connecting via browser from a closed network, as has been possible for 20+ years on most standard routers.
The reason? Think about it. Any time you install an app on your phone you potentially allow any of the following:
Access to your identity. Your contacts. Your messages, photos and other files. your camera and microphone. Your device id, call information, any accounts configured on your phone, log files, internet traffic, the list goes on and on. Anything you can imagine your phone is capable of, and more importantly, things that even you CANNOT IMAGINE your phone is capable of. Because the people who are CREATING the technology are 25 steps ahead of you.
Ask yourself what hidden permissions the app has on your phone...and if you are honest with yourself, the answer will be...YOU DON'T KNOW. Because you can't review the app code, and even if you could, you couldn't understand it.
But then here's the big one, and this is the kicker (keep this in mind when some $3-an-hour, script-reading, call center hack at Tmobile attempts to gaslight you by saying there's absolutely no concern or risks for you to install their app): Once installed, you've given the app access to the ANY FUTURE CONTROLS tmobile (or whoever they might eventually sell out to) might wish to add. Because going forward you will be constantly forced to do an ‘upgrade’, which enables who knows what.
And keep in mind that many (most?) major companies have been infiltrated at some level by implants from places like the chinese communist party, the WEF, and other nefarious organizations that intend you harm.
Think about that when Tmobile (or any organization) forces you to install their app in order to perform basic functions that can traditionally be done (and often more easily) without an app.