Heron of Alexandria · 10 AD

Math,
made tangible.

Drag equations. Spin the unit circle. Move the decimal point. Finally, a math tool that lets you play.

Download on theApp Store Coming soon onGoogle Play
2x + 4 = 12
sin cos

Three tools. Infinite understanding.

∑

Algebra Engine

Drag any term across the equals sign and watch it flip. Substitute values, apply index laws, trig identities, log rules, and complex numbers — all by touch.

◎

Unit Circle

Spin a point around the circle. Sin and cos update in real time. The most intuitive way to finally feel trigonometry.

×10

Scientific Notation

Drag the decimal point left or right and watch the exponent update live. Scientific notation has never been this physical.

"Where there is matter, there is geometry."

— Johannes Kepler, echoing the spirit of Heron

Named for a legend.

Heron of Alexandria — mathematician, engineer, inventor — believed in making abstract ideas physical. He built the first steam engine, the first vending machine, and wrote some of the earliest algorithms known to history. We named our app after him for a reason.

Read more about Heron →