Calmly Writer may be downloaded and evaluated for free, however a license must be purchased for continued use.
There is currently no enforced time limit for the evaluation.
Mac ARM M1 Installer
.deb x86 .deb ARM64 .rpm x86 .rpm ARM64 .tar.gz x86 .tar.gz ARM64
Windows Installation Instructions
In Windows 10, once you click on the .exe installer file, the Microsoft Defender SmartScreen may be displayed. In that case, to install the application you have to click on 'More info' and then 'Run anyway'. Windows displays this alert window when an application has not yet been installed by a minimum number of users.
Calmly Writer is a secure application and its code is signed with a digital certificate.