The iPhone is one of the most popular and best-known gadgets in the world.
It's pretty odd then that no one seems to know how to use it.
Recently a study showed that for CheapHolidayLand.com showed that 68% of people had no idea you can use the volume up button as a camera shutter, for instance.
Here are our 7 favourite 'hidden' features in iOS 7.
- If you want to delete text you've already written, shake your phone. It will delete the text.
- You can use the volume up button as a camera shutter.
- Your iPhone has a spirit level hidden in the Compass app.
- If Siri doesn't pronounce your name properly, or other words, you can teach her to do better.
- You can ask Siri to search for different topics on Twitter.
- You can block calls from certain, or all unknown numbers.
- Your iPhone will send you a 'happy birthday' message if you tell Siri your birthday.