Calc Engine
Custom graphing calculator
About
A highly customizable calculator with advanced features like graphing, equation solving, and unit conversion. Design your own keyboards and functions to streamline your workflow across Apple devices.
What's New in Calc Engine
1.0.1
May 14, 2026
Bug fixes
In-App Purchases
$9.99
Calc Engine+
Unlock everything. Yours forever, no subscription.
Developer apps
FAQ
How customizable is Calc Engine?
Calc Engine offers extensive customization. You can design your own keyboard pages by dragging keys, set long-press alternates, name keyboards, and choose icons. You can also define custom functions with up to three parameters and save frequently used constants.
Can Calc Engine plot equations?
Yes, Calc Engine allows you to plot equations like x = y² or sin(x) live as you type, directly beside the keyboard. You can tap any graph to expand it into a full-screen view for closer inspection.
Does Calc Engine support unit conversions?
Absolutely. Calc Engine can convert between hundreds of units across over 40 categories, including length, mass, volume, and temperature. You can favorite categories for quick access, and these settings sync across your devices.
What programming features does Calc Engine offer?
Calc Engine includes a programmer mode that supports hex (0x), binary (0b), and octal (0o) literals. It also provides a full bitwise toolkit including AND, OR, XOR, NOT, shifts, and rotates, with results shown in HEX, DEC, and OCT.
Does Calc Engine have ads?
No, Calc Engine does not contain advertisements. It is a free application with no ads to interrupt your calculations or workflow.
What devices is Calc Engine available on?
Calc Engine is designed to sync seamlessly across iPhone, iPad, Mac, and Apple Watch, providing a consistent experience across your Apple ecosystem.
How does Calc Engine handle equation solving?
You can type equations like x² = 121 or sin(x) = 0.5 directly into Calc Engine, and it will find all real answers. The solved answers can then be tapped to reuse in your next calculation without needing a separate solve mode.
What is the update frequency for Calc Engine?
Calc Engine was last updated on May 14, 2026, with version 1.0.1. While specific update frequency isn't detailed, this indicates active development and support.
