Andrew "Andy" C. Stone is an American computer programmer best known for his iOS app Twittelator,[1][2] which to date has sold over a million units for the iPhone and the iPad.

In his 25 plus year career as a programmer, he has published over 35 software titles for Hypercard, the NeXT workstation, Mac OS X, and for iOS iPhones and iPads.

Besides Stone's notoriety in the NeXT World as the first independent software developer to ship shrinkwrap product for the NeXT Computer, were the legendary raves[10] he and John Perry Barlow threw over 3 years, the first being held at the Exploratorium in October 1992.

Between that time and Apple's purchase of the NeXT Corporation in December 1996, Stone Design developed a number of other products for the NeXT, including 3DReality, a 3D modeling and rendering package and CheckSum, a personal finance application.

Since his retirement in 2015, Stone spends his time working on his organic farm, doing yoga, reading, hiking, and advocating for solar energy.

He also spearheaded a group called “the Cocoa Conspiracy,”[16] a loose knit ad hoc professional organization for iOS app developers based in New Mexico.