Tappsk 1.0.5 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. The software lies within Productivity Tools, more precisely Mind-mapping. We recommend checking the downloaded files with any free antivirus. This free Mac app was originally created by Matvey Kondakov.
From the developer:
Tappsk is a daily schedule manager that works as a to-do app, task planner, and calendar. The utility unites your planner, habit tracker, reminder app, and calendar in a single app, so you can concentrate on whatever needs to be done instead of wasting time on each separate app.
You may want to check out more software for Mac, such as NoteList, EventSync or CRMHaven, which might be related to Tappsk.