Hi Gfmcore,
I'm sorry to hear you are having issues logging onto the App Store from your iPad.
To address this issue, I would suggest logging out of the iTunes store on your iPhone, closing all apps, and restarting the iPhone.
Then log into the iTunes Store again and confirm your password and billing information on this device.
Sign Out of App Store
Settings > iTunes & App Stores
Tap on your Apple ID
Tap Sign Out
Close All Apps
iOS: Force an app to close
- From the Home screen, click the Home button twice.
- Tap and hold on the app.
- When it starts to jiggle, tap the red dot with the minus sign to close it.
- Double-click the Home button and try opening the app again.
For more information, see
iOS: Understanding multitasking.
* It's typically unnecessary to force an application to close. You can access all recently used apps by double-clicking the Home button, but these apps are not necessarily open.
iPhone, iPad, iPod touch: Turning off and on (restarting) and resetting
- Press and hold the Sleep/Wake button for a few seconds until the red "slide to power off" slider appears, and then slide the slider.
- Press and hold the Sleep/Wake button until the Apple logo appears.
iTunes Store: Changing account information
View Account:
Settings > iTunes & App Stores
Tap to enter Apple ID
Tap to enter password
Tap Sign In
Tap on the Apple ID again
Tap View Apple ID
Tap Payment information
Confirm billing information, enter security code, expiration date and year for credit card.
Tap Done
Tap Done at the top right corner of the screen
If these steps do not resolve the issue, please refer to this article for more information:
Apple - Support - Apple ID
Can't connect to the iTunes Store
I hope this information helps ....
Have a great day!
- Judy