[IOS8] SMS function ios8】ios8 system can send, but how to calculate the cost?

1 and ios8 system's short message function is iMessage, and pictures are sent through iMessage. There is no charge if there is a mobile phone traffic packet or it is sent via wifi.

2.iMessage is an instant messaging software launched by Apple, which can send short messages, pictures and videos. It has 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. IMessage uses the new message reminder system of iOS and Mac os to directly push information to the other party's screen, regardless of whether the other party is in the game or locked. If both parties are using iMessage, you can even see the state of each other's speech.

3. The usage of 3.iMessage is to click the "Settings" icon on the main interface of iphone. In the settings page, click "Information", tap the button on the right side of iMessage to open the iMessage function, select "Receiving Method" and set the contact address of iphone. Set up an applied account on the Apple ID. After setting up, you can send SMS or MMS for free using devices that support iMessage.