Q: Using the accelerometer of an iOS device in background I have an iPad that stays on my table at home all day while I'm at work. With my kids around (who are prohibited from using it), I was wondering if I could design an app (or download it, but I did not find it) that would alert me if the device moves.
For example, if one of my kids pick it up, it would detect it through the accelerometer and send me an email.
Is that possible to do with the application not running, but just installed? Like if it was running in the background. I know it is possible with the GPS, but I'd like to do it with the accelerometer to make it detect small movements. 
Thank you for your help

A: Your problem has been issued in several threads all over stackoverflow.
Next time you should really use the search function or at least post some code.
In the meantime check this:
From this thread Receive accelerometer updates in background:

You can not only use accelerometer for fatching data from background,
And as you say your App registers for location updates , start
location manager in forground.
Implementing Long-Running Background Tasks For tasks that require more
execution time to implement, you must request specific permissions to
run them in the background without their being suspended. In iOS, only
specific app types are allowed to run in the background:
Apps that play audible content to the user while in the background,
such as a music player app Apps that record audio content while in the
background. Apps that keep users informed of their location at all
times, such as a navigation app Apps that support Voice over Internet
Protocol (VoIP) Apps that need to download and process new content
regularly Apps that receive regular updates from external accessories

Short Version: It is not possible to ONLY get acceleration data in background.
