Who ported Lemonade Stand to the Apple II in 1979?

Charlie Kellner ported Lemonade Stand to the Apple II in 1979.

The original game had been created in 1973 by Bob Jamison for the Minnesota Educational Computing Consortium’s time-shared mainframe computers. Kellner’s work adapted that educational business simulation for Apple’s early home computer, making its lemonade pricing, advertising and weather mechanics accessible to a much wider audience.

The Apple II version was more than a simple change of platform. It added colour to the thunderstorm animation and included music associated with different weather conditions, including “Singin’ in the Rain” during storms. Apple later included the game with its computers throughout the 1980s, helping make it a familiar piece of early educational software.

Bob Jamison is therefore associated with creating Lemonade Stand, while Charlie Kellner is associated with the Apple II port. Bob Polaro is an easy distractor because he programmed a different Atari 8-bit version, published through the Atari Program Exchange in 1981.