iPhone 5 apps are asking for a verification code

iPhone 5 is an outdated iPhone, iOS 10.3.4 is the latest iOS version for iPhone 5, can’t be update to a higher iOS.

Most apps require iOS 14 or later.

Why i can not log in to apple apps

Can you tell us which Apple apps?

See the following Apple articles:

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

If you can’t download or update apps on your iPhone or iPad – Apple Support (UK)

Require a password for App Store and iTunes purchases

Require a password for App Store and iTunes purchases - Apple Support

Check also iPhone Service & Wi-Fi.

If they are On, turn Off Hotspot & VPN.

Do you need to enter a verification code? If you see a password box, enter the password (ABC) followed by the code (123) or ABC123 (no spaces).