Dual panel file manager, like Norton Commander, Midnight Commander or Total
Commander.
Notable features:
* Ability to copy and move files between its two panels
* Create or extract (unzip) ZIP archives
* Transfer files via FTP/SFTP/SMB
* Full-featured app manager able to access extra info and share apks
Requires root: No, but if provided you can remount filesystems and mess around
with system files.
Note: Due to missing deps, SFTP server connections authenticated with Kerberos might fail on certain newer devices.