Mac
macOS disk image
Download JustSay-macOS.dmg, open it, drag Just Say to Applications, then open it from the menu bar. macOS 14 or later.
Get Just Say
Download Just Say for Mac or Windows.
Windows
Windows installer
Download JustSay-Setup.exe and run it. If Windows says it protected your PC, choose More info, then Run anyway. Windows 10 or 11, 64-bit.