Help with a notification icon

B. Diddy

Senior Ambassador
Mar 9, 2012
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Welcome to Android Central! You can easily find out by swiping down the notification panel and looking at the details there. If this isn't your phone, then you can ask the owner of the phone to do that.

If you're worried or suspicious about the other person's behavior, and they won't tell you what the app is, then I'm afraid we can't help you, since we discourage discussions about violating another person's privacy.