OkaTodo 1.1.5 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free Mac application was originally created by Nanjing Oumi Software Development Co. We recommend checking the downloaded files with any free antivirus. The software is categorized as Productivity Tools.
From the developer:
Oka To Do is a handy calendar planner and manager. The application allows you to manage your task list quickly and easily. It can organize tasks into different groups, create deadlines with reminders and due dates, build reminders with recurring rules, prioritize the most important tasks, back up the completed tasks to the history list, search and filter tasks quickly, and back up data to the cloud and sync tasks between iOS & Mac clients.
You may want to check out more software for Mac, such as NoteList, EventSync or CRMHaven, which might be similar to OkaTodo.