Starting in iOS 5, users are able to create custom vibration patterns for alerts and rings. The following screenshot shows the UI for creating one (Contacts app in iOS 6):

&lt;img src=&quot;http://i.stack.imgur.com/AyT26.png&quot; width=&quot;320&quot; height=&quot;480&quot; alt=&quot;Screenshot of UI for creating custom vibrations in iOS 6&quot;&gt;

I&#39;ve been searching around, including the documentation, and I cannot find any public APIs that expose the creation or playback of custom vibrations. The closest thing is to use the `AudioToolbox` framework to play a short, constant vibration:

&lt;!-- language: objective-c --&gt;

    AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);

**Does anyone know if there are APIs for custom vibrations?** It doesn&#39;t necessarily have to be public APIs. I&#39;m curious to know what the Contacts app uses. Does anyone know?

*P.S. Others have suggested `_CTServerConnectionCreate` in `CoreTelephony` ([example](https://stackoverflow.com/questions/265761/how-do-you-make-the-iphone-vibrate-for-arbitrary-durations)). I tried it, but couldn&#39;t get any vibration going for some reason.*

&gt; **October 2015 Update:**
&gt;
&gt; There are new private APIs in iOS 9 to interact with the Taptic Engine in compatible devices. See https://stackoverflow.com/questions/32526868/taptic-in-ios-9 for more.

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Are there APIs for custom vibrations in iOS?