How do I stop (trbx-l3.online) app from taking over my Screen Time on iPhone?

You are in the All Devices Section. You need to check all the devices that use your Apple ID.

Are you Part of Family sharing? Or

Do you have multiple devices using the same Apple ID? See the pic below, which is self-explanatory.

“Yamaha TRBX series of electric bass guitars: this app or whatever it is (trbx-l3.online) is taking up a lot of my screentime, sometimes up to 24hrs! how can I get rid of this?? I tried going into advanced settings and deleting apps/websites, but that didn’t help either.”

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Thank you for the screenshot.

trbx-l3.online:

Googling this, it appears to be something to go Yamaha TRBX series of electric bass guitars. So, does that ring a bell? Here is what Google says: what is trbx-l3.online

The app developer may not have updated their software to ensure compatibility with the iOS version your device is currently running.

If you encounter any challenges with third-party applications, the best course of action is to directly contact the app developer for further assistance. Here's a brief guide on how to do it:

1. Identify the app developer.
2. Visit their website or app store listing.
3. Look for their contact information or support channels.
4. Clearly describe the issue you are facing.
5. Provide any necessary information they may need.
6. Follow their instructions and provide feedback.
7. Be patient and follow up if needed.

By reaching out to the app developer, you increase your chances of receiving accurate and personalized support for the challenges you're experiencing. To contact an App developer --> How to contact an app developer - Apple Support