Sharing notification-top left of phone Which is that app?
Open the notification tray and the application's name should be written there for each notification. (Android 7.0 Nougat and above)
Here are two examples: As you can see, the app name "Termux" is visible next to the application's notification icon.
Here's another example, where you can see the app name "Hangouts" is written next the application's notification icon.
None of this has anything to do with rooting your device, it's built in to stock Android.
a) Termux doesn't require root / b) I'm trying to point out that the notification-causing application's name is written at the top. I'll give another example then. Dec 22, 2017 at 19:23
Sorry my mistake got what you meant Dec 23, 2017 at 2:17