I have difficulties with my iTunes
I can not update apps it does not let me
iPad, iPadOS 14
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Best reply
Please make sure you are using the same Apple ID in which you used to download an app, in order to update it.
If you have changed your Apple ID, since you downloaded the app, this means you will have to uninstall the app and reinstall it with your new Apple ID.
You might also find the following article helpful:
If you can’t download or update apps on your iPhone or iPad – Apple Support (UK)