iLetter Version 2
iLetter v2 is a replacement for iLetter v1; it is now a single application that no longer relies on other components. At present it is available for macOS (Yosemite to Mojave), but active consideration is being given to generating a Linux version.
iLetter v2 was developed because changes to web browsers were making them increasingly unsuitable as vehicles for applications of this type.
See also the Release Notes for iLetter v2.