This app has never worked for me since I got a new iPhone (Previously I used Moto G5 on Android without problems for years).
When I open the app it asks for my phone number which I enter on the next screen and click Continue. The next message is always… “Sorry, looks like we need a moment” T-Mobile Tuesdays is getting some updates. Please check back later. And there is a Refresh button that results in the same message displaying 1-2 seconds later.
I have uninstalled the app several times, and even set the cache to clear on next launch.
I don’t think ay updates are getting applied though that is what the message states. My app version is 6.7.2 build 3546