iPhone is becoming popular among the mobile, due its simplicity and the latest features that are installed in it. With the help of these applications you can save your important messages, contacts, click memorable photos, record videos and many more. Nowadays WhatsApp is becoming popular among all the mobile users, as it gives you the option of sending text, video files as well as audio files easily. Many users may even save their personal information in the phone. Every year iPhone gets updated and it is inbuilt with many new advanced features and the software also upgraded. Every person would love to use this new phone. Many people even sell their old phone and purchase a brand new iPhone. While selling your older phone, you should keep few important things in mind. As many important kinds of stuff have been stored in your phone, which has to be deleted, such as messages, contacts, passwords, user ids, and many more. The phone that you are selling may land into a wrong hand, and may use you use it in a wrong way. The data that you have deleted can be recovered with the help of data recovery software if you have simply deleted all the data or you format your phone. In order to permanently delete all the data from the phone, you have to delete it with the help of third party application.