Upgrade to Permute 3
Permute 3 is the next major release of Permute. It is a paid upgrade with upgrade pricing and other details described here.
To upgrade from the App Store version of Permute, please download the following upgrade tool which automatically locates your copy of Permute, validates it and creates an upgrade discount coupon for you. Please, download this tool and follow on-screen instructions.
You may alternatively try Setapp - the only subscription service for macOS apps - get over 100 apps including Downie 3 and Permute 3 for a fixed monthly fee with no upgrade fees - ever! Enjoy one month free trial.