In 1982, a 21-year-old Chris Espinosa faced a familiar challenge in software design: satisfying Steve Jobs’ exacting eye. Jobs had been critiquing Espinosa’s Macintosh calculator interface for days, ...

We’ve already seen a couple of useful calculator apps for the Apple Watch, but the most recent one, released today, arguably has the coolest interface of them all. Geek Watch takes the design and ...

While it's too big to fit in your pocket, the 35s follows in the tradition of a long series of handheld calculators. Every once in a while, I come across a product where I say, I've got to take that ...

Graphing calculators are one of those funny markets that never seem to change. Standardized testing has created a primordial stew of regulatory capture in which ancient technology thrives at modern ...