How Long 1.0 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The program is included in System Tools. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
How Long is an extremely simple program that simply launches one window that displays the amount of time that your Mac has been turned on.
You may want to check out more Mac applications, such as Adore Picture Difference: Long Distance Love Lite, A Long Way Home or Odysseus: long way home, which might be related to How Long.
Simulation
Adventure