This one is very easy to use and only requires that you plug in your device to your computer. It also comes with an option to fix iOS errors. It comes with an easy to use interface and is very efficient. PhoneClean is a well presented iphone cleaner that works very well to eliminate junk files from your iPhone and keep the device working optimally.
Tap on 'Cleanup' to delete the unwanted data to speed up your iphone after the scanning is over. The software is now starting to help you erase the selected junk files. Choose the junk files you need to delete on iPhone and then tap on 'Start scan' Choose the 'iOS Optimizer' option when the program moves to the next screen as shown below
Then you will see the following main window. Download and install dr.fone on your computer and then launch the program. Step-By-Step Guide to Clean iPhone with dr.fone - Data Eraser (iOS)