StacknSplash 1.3 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. 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. The program belongs to Productivity Tools. The actual developer of this Mac application is Paul Burkey.
From the developer:
Stack'n'Splash is an action puzzle designed to test your sorting skills under pressure. Arrange blocks into groups by swapping, pushing, stacking, dropping, and splashing! Groups of 3 or more blocks are removed from the game and points awarded! Your aim is to push the remaining blocks under the water! All this time, new blocks are raining down from the sky, in a race against the clock!
You may want to check out more software for Mac, such as DaliClock, TimeMachineGrowler or TimeNet, which might be similar to StacknSplash.