Do Apple devices share text messages?

Yes, and multiple Apple devices can share an Apple ID.

You can only share five at most.

Precautions:

1. However, it should be noted that if you log in to the same id, you need to turn off the options such as "photo stream" and "Address Book" in icloud set by your mobile phone, otherwise the data in the shared devices will be cached synchronously with each other, and imessaga will send messages, and FaceTime videos, iTunrs Store and App Store will all display records. However, sharing has a particularly good place, that is, you can use the ID to find the approximate addresses of all Apple settings connected with this ID, provided that the searched settings are networked and the function of finding my iphone is turned on in the same city.

2. Trusted devices can accept Appie ID verification code, and double authentication can be enabled on the password and account security of trusted devices. When enabled, devices with the same ID need a verification code obtained from a trusted phone number to log in, and can only share this ID after correct input.

3. Apple mobile devices with the same Apple ID can find all devices connected to this ID at the bottom of the Apple ID, but only trusted devices can click other devices from the ID account and then remove them from the account. The above operations can be found in the settings in Apple's mobile phone.