What's the difference between blue-green and blacklist of Apple SMS?

The SMS displayed in green belongs to the SMS of traditional operators, and the SMS displayed in blue belongs to the unique iMessage of Apple devices.

Software system: ios.

What does the color of iPhone SMS mean? For the old users of iPhone, it is already very familiar. However, for some new users who are not familiar with iPhone, the first time you send a text message on your mobile phone, you will find that some text messages are displayed in green and some are displayed in blue.

Traditional operators have nothing to say about SMS, that is, ordinary SMS, without equipment restrictions, while iMessage is different.

IMessage is an instant messaging software launched by Apple, which can send short messages, videos and so on. , and has very high security. IMessage is different from SMS/MMS service of operators. Users only need the data support of WiFi or 3G network to complete communication.

Is there a charge for Apple SMS?

There is a charge for sending messages between Apple phones. However, after iOS5, Apple added iMessage function. If both Apple device system versions are above iOS 5, the default message is iMessage, and there is no charge for the message.