Our website provided a free download of xListSolo 5.1 for Mac. This Mac app is a product of adnX SARL. The application lies within Productivity Tools, more precisely Mind-mapping.
From the developer:
xListSolo helps you create tasks, schedule tasks, and track progress. The application is featuring an innovative concept - there is no document to manage. Data is saved in real time inside a database. With such architecture, you no longer have to worry about the location of your data. You work directly and quickly with your to-do lists.
You may want to check out more software for Mac, such as CST2Manage, Alchemy- or Sync Entourage & AB Groups, which might be related to xListSolo.