Can’t connect to the App Store

Hi alexejev,

welcome to the Apple (user-to-user) Community!

Re: "Can’t connect to the App Store :

After updating iOS 18, I do not have access to the app store nor from iPhone nor a MacBook"

You may want to check you are signed in (to your iPhone & Mac) with the Apple ID you use for the App Store:

See how to: Sign in to your Apple Account - Apple Support

You may want to try restarting your iPhone (deletes temporary files, re-establishes connections, may update recent setting changes, and often restores order if something is not working as expected.

(On Mac: you can use the Apple menu > restart.)

You can check if there are restrictions set on App Store use:

Manage App Store purchases, settings, and restrictions on iPhone - Apple Support

Else: Apple support has trouble-shooting articles online that may be helpful:

What to do: If you can't connect to the App Store, iTunes Store, or other Apple services - Apple Support

If you can’t download or update apps on your iPhone or iPad - Apple Support

or

If you can't download or update apps on your Mac - Apple Support

If help is still needed you can: Contact - Official Apple Support

or

For feedback to Apple: Product Feedback - Apple

All the best :-)