Did you know that with iOS you can create customized vibration patterns and use them as ringtones? iOS comes with a bunch of predefined vibration patterns, which might be all you need. But you can make your own patterns just by tapping on the screen.
Go into “Settings” and tap “Sounds”, Choose “Ringtone” to customize the vibration for your ringtone. Then, “Create New Vibration”:
Tap your finger on the screen in whatever pattern you choose:
Once you’re done, you can click “Play” to test out your creation. Then “Save” it to make it your custom vibration tone: