Takes a few hours to update usage , so checking periodically while it’s being used isn’t accurate . Best way to check is to wait until you haven’t used it like after you wake up and just turn it on and check before you use it and it should have updated by then

If you have it set as your primary data sim, under cellular settings it’ll show you the data usage.

my T-Mobile

Create a my T-Mobile account online using the number. If it asks for a pin, call in to get that reset and they’ll confirm by sending you a text. Then you can proceed with creating your account and checking data usage

I set up Test Drive a few days ago on my iPhone 11 through eSIM. My primary line is ATT. The setup was fast and flawless. When I wanted to check how much data my trial was using, things ran into a ditch.

I tried to create a TMUS account using their number. It required an in-store PIN. I called support, and was put in a 2-hour queue, so I hung up.

I asked TMUS chat support. CS agent referred me to an irrelevant website then dipped out on me while I was browsing it. I tried tweeting TMUS support; they ignored me. I DM'd TMUS support and got one reply: the iOS app shows how much data you've used.

Except it doesn't. It shows how many days are left in your trial. After a couple rounds with a very nice support agent over Twitter DM, she offered to manually check data usage for me.

That's great, but ...

Try dialing #226# from the e sim number. Might work

I’d give it a few more days. I know as frustrating as it is but my #WEB# on Test Drive just started to work yesterday for me which was day 9 in the trial.

You should see a "Usage" section if you go to Settings > Cellular > Test Drive, it'll show your combined data usage in there.

That data comes from T-Mobile, so it won't count the excluded speedtest data. As for that itself, T-Mobile does exclude Ookla speedtests - I've heard that they exclude the FCC speedtest app as well, but haven't tested it myself.

Comes with every device, check your data usage, by going over to Settings > Network & Internet > Data usage

Incase you need a 3rd party app - Glasswire is a great solution as it offers real time monitoring and detailed graphs

I use AdGuard for this purpose as well. It may not be as straightforward as actual tracking apps, but AdGuard also gives you details of what URL or domain an App tried to access and how many times. You can also restrict apps from using certain functions or block domains, etc. Well it's a firewall, dns, vpn (with AdGuard VPN). All in one solution.

go for glasswire.... not only is it good at what you want to do but now all it's feature is completely free...

Glasswire. Been using it for 2 years now

You can track your data usage on Android using Check Internet Data Usage app. This app Shows data consumption for each app individually. You can also set a plan to limit data usage on your Android.

The app and site won’t tell you how much roaming data you’ve used for the cycle.

I used data usage in settings to see roaming usage. I also turned off HD streaming so my data isn’t burned so quickly.

Edit: I have a family member that’s been traveling and decided to check the app for usage. If you filter to the specific line, you’ll see international data!

iMessage will always use data, so cellular or WiFi. That should be negligible though.

And they don't separate out domestic data and roaming data. It's all showed in one bucket. You kinda have to know what you started out with.

Does #932# work?

If you're Roaming data and messages will still be free, on network calling is what you want to worry about. You will also get SMS messages.

Karnaj

If you go into your settings and select cellular it should give you a breakdown of all data usage for the current billing cycle and you can also select to view the previous billing cycle. By selecting Usage it will give you a breakdown of what you have available to you and when your billing cycle ends. Hope this helps some.

For data usage, open the phone app and dial #932# which is #WEB#

Other short codes here: https://www.t-mobile.com/support/plans-features/self-service-short-codes

Data is still showing the same as always in my prepaid account.

Okay, for anyone reading this here's what I did. Your email you get after you activate your test drive should say at the very bottom your pin number is. If it has it you're good to go. If not, you'll need to call tmobile prepaid support and give them your test drive number and ask them to change the pin. You might have to wait a few hours after that before it takes effect. Then you can successfully create a prepaid tmobile account and check your data usage there.

You can login to the hot-spot by going to 192.168.0.1 or something similar, check the box for exact info.

Edit: Speed tests should count against your data, not 100% sure.

#WEB# if it works for you, if you’re using the eSIM one.

It’s most likely because of a delay in the CDR files from our parent carrier. Drop me a message with your details, and if it ends up taking longer, we’ll figure something out.

Same thing happened to me. Took several days.

Took mine 36 hours to start showing in the app.

It usually isn’t instant but try refreshing the app or restart it and normally it will update within the same day or 12-24hrs.

How long did it take you to port into dark star? I’m in the middle of transferring my number and hasn’t fully gone through yet and has been 23 hours so far, if it took more that a day for you then it might just be usmobile taking forever on the porting process.

Web or app? If app try pulling down to force refresh, if that doesn't work try clearing cache for the app.

I see you've checked via both web and app and it's still not updating. Try to re-login and check if it bears any results. Do observe it for 24 hours and if it still isn't updated - drop me a DM with your details and I'll get it checked.

Takes some time to update