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Open iTunes. Got to the top left side drop down menu and go to Apps.
Once you open the Apps, click on Updates button. If you have any updates they will show. Next go to bottom right corner and click on Update All Apps button. Very simple to do. I could not show you the last button as I have no updates at this time.
Next go to bottom right corner and click on Update All Apps button. Very simple to do. I could not show you the last button as I have no updates at this time. But it is another way to find out if you have updates to do and will change to Update All Apps if you do.