How do the three folder encryption types differ from each other?

Diamond Encryption: Pack and encrypt a folder into an encrypted file with internationally mature encryption algorithm. Once a folder has been encrypted, no one can know what data is stored in a folder without decryption.
Full Encryption: Encrypt all files in a folder at one time with the internationally mature algorithm. Just open the file you want to use and enter the correct password. It's very convenient and safe. If you want to decrypt all files in a folder, right click on the folder, select "Decrypt all Full-encrypted Folder", enter your password in the password field, and then click OK.
Portable Encryption: Pack and encrypt a folder into an executable (.exe) file with internationally mature encryption algorithm. You can encrypt important files and folders with this method, and then send it over the network or by other means to be used on a machine where Best Encryption Expert is not installed.

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