PasswordGorilla downloads:

Version 1.6.0-beta-2 [1]

gorilla-1.6.0-beta-2.kit GPG signature

Version 1.6.0-beta-1 [1]

gorilla-1.6.0-beta-1.kit GPG signature

Version 1.5.3.7:

Linux 32-bit (gorilla1537.bin) GPG signature
Linux 64-bit (gorilla1537_64.bin) GPG signature
MacOSX (gorilla15371.zip) GPG signature
MacOSX (gorilla15372.zip)
Reported to be compatible with MacOS Mojave
GPG signature Updated file compatible with new MacOS 'Maverick' or 'Mojave'
MacOSX (gorilla.mac.15373.zip)
Not compatible with MacOS Mojave
GPG signature Updated Tcl runtime to overcome Issue #122 on Github
MacOSX (gorilla-pre160-3dd07148dbe6b0bf3ae2599aad1f584a9defcedc-macos-Tcl-8.6.12) GPG signature Updated Tcl runtime to 8.6.12, which overcome Issue #224 on MacOS Catalina

Note that this file is just a MacOS Amd64 executable, not an "app package".
IMPORTANT MacOS Gatekeeper information - Please read this if downloading a MacOS version.
Windows 32-bit (gorilla1537.exe) GPG signature
Windows 64-bit (gorilla1537_64.exe) GPG signature
Windows 64-bit (gorilla-1.5.3.7-v1.5.3.7-1c17048e09131fa613193c52f498c66a1e7b01c7-win64.exe) GPG signature Please try this version if the gorilla1537_64.exe version fails to run on Windows 10
Source code (gorilla-1.5.3.7.zip) GPG signature

How to use GPG signature files

1: 'beta' versions are supplied as an architecture/OS independent .kit file. Please use an appropriate TclKit executable package found in the TclKit support files area of this website to launch the .kit files.