Calcuvator Support

Calcuvator is a calm, tactile calculator with three modes — Basic, Advanced (scientific), and Graph.

Frequently asked questions

My trig results look wrong.: Check the Rad/Deg toggle in Advanced mode (or Settings → Angle Unit). sin(30) is 0.5 in degrees but −0.988 in radians — both are correct.
What does the % key do?: After a number it means percent: 50% + 1 = 1.5. Between two numbers it acts as modulo: 7 % 3 = 1. There is also a dedicated mod key.
How do I pin favorite functions?: Long-press any scientific key and choose “Pin to Favorites.” The same menu explains what the function does, with an example.
How do I trace a curve?: Tap anywhere on the graph, or enable the crosshair button. Drag or use the slider to slide along the curve; toggle Tangent to see the tangent line, and the panel shows whether the function is increasing or decreasing.
How do I see x-intercepts and maxima?: Enable the key-points button (the dotted circle) on the graph. Tap any chip below the graph to center on that point.
How do I compute the area under a curve?: Graph tab → ••• menu → Area Under Curve, then enter the two x values. The shaded region and its signed value appear on the graph.
Where is my data stored?: Everything stays on your device. See the privacy policy.

Found a bug or have a feature request? Email ayedq8@gmail.com — please include your iOS version and a screenshot if possible.