iOS Run Code Once a Day

Question

The idea behind this app is very simple: download a file. However this app will be for people who are not always within internet access range, so I need it to know that at,

Answer 1

Background applications have a set time limit (I believe 10 minutes, but don't quote me on that, it could be less) to complete whatever they are working on. You will not be able to use background tasks to do what you want.

What you can do is set an NSUserDefault with the date of the last download. On launch check the date saved, if the date is not the current date, and it is after 9:00am, initiate the download programatically.