Here are the steps that has to be followed in-order to use chronus.
You can also learn to install chronus or know how to backup your iPhone.
The first step require you to launch Chronus by tapping its icon on the SpringBoard.
After the Chronus opens, a list of all the different items will be display which can be backup.
Tap to select an item you would like to backup.
Now we are at a blank Calendar list. Select the backup button at the top right hand corner of the screen.
Notice now a new restore point will be created. Press the blue arrow on the restore point to view the data saved for backup.
Press the button at the top left to return to the restore point list.
Press this restore point to view the functions associated with it.
A popup will appear asking what you would like to do with the restore point. You can Restore, Delete, or Email the restore point. In this example, the Restore button is selected.
You can now return to the list of items for backup by pressing the Chronus button at the top left. Or if you would like to email yourself the backup, press the restore point.
Then press Email from the popup menu that appears.
Mail will open with the backup as an attachment. You can now send it to any email address you like.