Hotspot Usage

I am a Sprint customer and was just notified that MySprint app has been discontinued and I have to use T-Mobile app instead. In MySprint app, I was able to keep track of my hotspot usage (I bought extra GB to use), but not in the T-Mobile app. I called T-Mobile and they said there's no way to keep track of the hotspot usage. I think that's stupid. Does anyone know if there's a way to keep track of the usage?

Thank you for any suggestions/comments.