At the 2017 Worlwide Developer's Conference (WWDC), Apple announced to Mac app developers that MacOS High Sierra "will be the last macOS release to support 32-bit apps without compromise."

Therefore, SessionSafe for MacOS will only be available in a 64bit version later in 2019.

If you do require a copy earlier than that, please send an email to sales @ sessionsafe . com - we can most likely accommodate you much earlier than that.