MAC OS X 10.5.8
is there a todoist vs. for Max OS X 10.5.8?
Thanks for your help,
you can try to install this version: http://files.wedoist.com/dbb88e0cacd358c4bb31da36b438475a/as/TodoistApp.zip
If it won't work, please note that you can access Todoist any time through any web-browser (and a variety of browser plugins) and it will have the same functionality as the stand-alone app (which also connects to the web-app, but through its own window).