On your iPad or iPhone you can turn on iCloud backup (via Settings > [your name], and tap iCloud > tap iCloud Backup > ON)
If you are using iOS10.2 or earlier, (go to Settings > iCloud > Storage & Backup > iCloud Backup > ON) or in iTunes if you have select "Backup to the iCloud". Once this is done your device will automatically backup your PIM data (as well as all your other apps data and photos etc) daily over Wi-Fi when your device is connected to a power source. Once you plug it in, everything is backed up quickly and efficiently. This way if your iPad or iPhone is ever stolen, lost or the PIM app is accidentally wiped, your device can be easily restored easily and quickly.
More information about this feature can be obtained from Apple Support/iCloud Overview