How to set SMS password for Apple 6p?

Apple's 6p IOS itself cannot set the SMS password.

Only third-party App programs can achieve their goals. There are many such third-party App programs, such as "message encryptor" (SMS/email /QQ message, etc. ).

The installation and use methods are as follows:

First, download and install the information encryptor;

Second, you can open the program after installation;

Third, add contact information;

Fourth, add the phone number of the contact person;

5. Add the contact list to be encrypted;

Sixth, set the encryption password and then you can use it.