Is it possible for someone to be watching your iPhone screen?

My sister has been responding to things I have been looking up on the internet, it's freaking me out, I'm hoping it's just a coincidence. Is there a way?

There are certain apps that would enable her to spy on your screen, although I'm guessing you would detect those fairly quickly. Other than that, she could be going on your iPhone when you're not around, and taking a peek at web brower's History? I don't know why she would do that though…

She can see anything you do on the internet if you are on the same network, but most likely she is not actually looking at your screen.

I have seen advertisements about an app made specificly for some nosy parents that want to see what their children are doing. I suggest taking a glimpse at her phone to see if she has any guardian app

Maybe she knows your gmail password I suggest changing it. If someone has your mail and password they could get in your account and see

there is a picture of someone unknown on my screen for a split second on start up of iphone occassionally. Is this an image from previous owner, or could someone be watching my phone

there is a picture of someone unknown on my screen for a split second on start up of iphone occassionally. Is this an image from previous owner, or could someone be watching my phone