With gigabytes of internal memory provided, it’s not sure that users will be filling their iPhone’s up with content downloaded from the App Store (up to 32 GB available, depending on the model). Using its WiFi network connectivity options, Apple’s Smartphone an also be turned into a network storage device – also known as a NAS.
Start by going to the App Store portal to find and download the iNAS applications which is free.

Once you have installed the application, start the application to activate the connection (thanks to the small cursor on the main page) and enter your connection username and password (by using the small i button to the top right), before entering the connection address and exiting the program.

Returning to the computer, you will now have to right c lick on the computer icon and select "Connect a network drive…".

In the window that opens, enter the address noted above and click on "Finish".

A new window will then be displayed. In this, enter the username and password for the connection before clicking on "Ok".

Everything is then done. You can now copy the files and folders of your choice to and from the device.

You should avoid storing sensitive data though, as the iPhone is a favourite target for thieves…