Mailplane 5
Mailplane 5 for Apple silicon and Intel Macs is in development.
Mailplane 4
Mailplane 4 remains available to existing license holders. It is no longer available for purchase and is not receiving major new features. We tested Mailplane 4.3.15 on macOS 27, and it continues to work in our testing. On Apple silicon Macs, macOS will offer to install Rosetta if needed. The installation takes only a few seconds. Read our update.
macOS Sierra (10.12) through macOS 27
Mailplane 3
Was in service between 2013 and 2018. Be warned that we don't actively sell and develop it anymore.
OS X Yosemite or higher (10.10+)
OS X Mavericks (10.9)
OS X Mountain Lion (10.8)
OS X Lion (10.7)
Mailplane 2
Was in service between 2008 and 2013. Be warned that we don't actively sell and develop it anymore.
OS X Lion or higher (10.7+)
OS X Snow Leopard (10.6)
OS X Leopard (10.5)
OS X Tiger (10.4)