How to Download or Update an iPad mini App from the iPad mini
You can easily download an app directly to your iPad mini or update an app that you already have, but only if you have an internet connection for your iPad.
How to download an app from the App Store
To download an app to your iPad (while using your iPad), follow these steps:
Tap the blue price (or free) button near the top of its detail screen.
Once tapped, the button transforms into a green Buy button.
Tap the Buy button.
When prompted, type your iTunes Store account password.
After you do, the App Store closes, and you see the Home screen where the new app’s icon will reside. The new app’s icon is slightly dimmed and has the word Loading beneath it, with a blue progress bar near its bottom to indicate how much of the app remains to be downloaded.
If necessary, if the app is rated 17+, click OK on the warning screen that appears after you type your password to confirm that you’re 17 or older before the app downloads.
The app is now on your iPad, but it isn’t copied to your iTunes Library on your Mac or PC until your next sync unless you’ve enabled automatic downloads. If your iPad suddenly loses its memory (unlikely) or if you delete the app from your iPad before you sync, that app is gone. That’s the bad news.
The good news is that you can download it again from the Purchased tab. Or the app will reappear spontaneously on your iPad if you’ve enabled automatic downloads.
How to update an app from the App Store
Every so often the developer of an iPad application releases an update. If an update awaits you, a little number in a circle appears on the Updates icon at the bottom of the iPad screen or in iTunes drop-down Library menu. Follow these steps to update your apps from your iPad:
Tap the Updates icon if any of your apps needs updating.
If you tap the Updates button and see (in the middle of the screen) a message that says All Apps Are Up to Date, none of the apps on your iPad requires an update at this time. If apps need updating, they appear with Update buttons next to them.
Tap the Update button that appears next to any app to update it.
If more than one app needs updating, you can update them all at once by tapping the Update All button in the upper-right corner of the screen.
If you try to update an app purchased from any iTunes Store account except your own, you’re prompted for that account’s ID and password. If you can’t provide them, you can’t download the update.