Why am I being asked to subscribe to Transmit when I’ve already bought a copy of Transmit 5 in the past?
This means you’ve downloaded Transmit 5 from the App Store rather than from panic.com. Unfortunately, the App Store version and the version from panic.com are not 100% the same and are not interchangeable.
The Mac App Store version of Transmit is only available via subscription, so if you have already purchased a non-subscription copy of Transmit 5 from panic.com in the past, you’ll need to download the version from panic.com instead of using the App Store version.
If you have found yourself in this situation, delete the copy of Transmit 5 you’ve got in your Applications folder, then download a copy from our website instead. Once you’ve got the correct version installed, you will be able to enter your serial number to unlock the app after launching it.