If you don't use your iPhone or iPad any more, you'd better erase the device data permanently. Dr.Fone for iOS provides an easy and safe way to wipe all the videos, audios, history and more on your iDevice. The erased data can not be recovered.
Workable Devices with iOS 9 and former:
iPhone 6 Plus, iPhone 6, iPhone 5S/5C/5, iPhone 4S/4
iPad Air 2, iPad Air, iPad mini 3, iPad mini 2, iPad with Retina display
iOS Data Eraser [android-data-eraser.com] is such a tool to help you wipe your iPhone, iPad data permanently and securely with zero possiblity of recovery.One-click to delete all types of data from iPad, iPhone and iPod, such as contacts, text messages, photos, videos, account info, passwords, emails, apps and more private data.