TeraCopy - TeraCopy is a compact program designed to copy and move files at the maximum possible speed, providing the user with a lot of features.
Mailspring - Mailspring is a mail client for Mac, Windows and Linux.
OrganizerMax - OrganizermaX is an innovative all-new file management app for Mac OS.
Geary - Geary is an email application built for GNOME 3.
RoboCopy - Robocopy is a free file copy tool that is included with the Microsoft Windows operating system. It allows one to construct complicated instructions to move, or copy files.
Airmail - Airmail is a lightweight and lightning fast mail client for Mac.