Sociosoftware

Features:
Supports all common archive formats and types (zip, rar, 7zip, 7z, jar, apk, tar, gzip)
Create zip files that are encrypted with a password (or unzip files)
Create archives that support high compression, like 7Zip or Tar.
Unzip zip files or extract 7Zip or 7z files that are encrypted a password (you need to know the password, 7z is not a password cracker)
Browse the contents of archive formats that contain multiple files: 7Zip, 7z, Tar, Apk, Jar, Rar
Background execution: create, extract or unzip files even while the app is closed
Intuitive files manager with standard file operations like move, copy and delete
Job progress and history
File associations for extensions (like 7z) lets you open files by selecting externally

Here’s why you should already be using 7Z:

Safeguard your files and folders by encrypting them within password protected zip files. Encryption is a secure way to protect your files.
Archiving allows you to reduce the file size of files or folders. You can also compress several files into one smaller file that makes it easier to email or share.
You can zip files and large on your device that you rarely use to save disk space on your Android device. You can unzip them again later when you need them.

More about archives:

Archives come in several formats, each with their own unique compression algorithm. 7Z supports all the common archives, like 7Zip, 7Z, Rar, Zip, but it also supports less used archives.
Archives are usually found on the internet and need to be unpacked or extracted before the contents can be used. You need to unzip files before you can use them.
Sometimes the archives are encrypted. This means they require a password before they can be extracted. This password was entered by the original author and is usually included in the download.

Available on Google Playstore for Android