I am the original author of file encryption app AxCrypt. Since then I founded and left a company commercializing it. Now I have published a back-to-basics fully compatible version, with a free GPL command line, an optional proprietary cross platform GUI built on top of the command line, as well as a SDK for .NET developers.
Show HN: Encryption Toolbox for Linux, Windows and macOS – AxCrypt Compatible | Heykuki News