things2thl 0.8 for Mac can be downloaded from our website for free. Things2thl for Mac lies within Theming Tools, more precisely Multiple Desktops.
From the developer:
things2thl is a command-line program for migrating data from Things to The Hit List. If you have been using Things and want to try The Hit List, things2thl allows you to transfer all your areas, project, tasks and tags, so that you can use THL with real data.
You may want to check out more software for Mac, such as Occurrence Selector, which might be similar to things2thl.