How to set up the encryption software for iPhone 7plus?

Tool: iPhone 7

Operating system: iOS 14.4.1

1. Taking iPhone 7 as an example, click Settings on the phone screen.

2. Pull down and click General on the page.

3. Click on access restrictions, as shown below.

4. Click to enable access restrictions, as shown below.

5. Then enter the password for access restrictions, as shown below.

6. After entering the access restriction page, just turn the allow switch on the right side of the application you want to encrypt, as shown below.