Caldy
The Dynamic Calculator
When you need more than a basic calculator, but do not want a spreadsheet.
Available on the Apple App Store for the iPhone.
Visual calculator
Caldy is a visual calculator: linked values are clearly shown with connecting arrows. The history is right in front of you.
Dynamic calculator
Caldy is a dynamic calculator: any number or operation can be changed and the linked expressions are updated automatically.
Labels
Numbers can have labels, making the expressions easier to read.
Drag and drop numbers
Results can be dragged and dropped on placeholders to connect expressions.
Extract sub-expressions
Sub-expressions can be extracted to structure complex calculations.
Rearrange expressions
Sub-expressions can be extracted to structure complex calculations.
Tips and taxes
Caldy percentage increase function, very handy to calculate tips or tax such as VAT.
Dynamic plots
Caldy can plot expressions. Plots are zoomable and dynamic as well. Pinch on the plot to zoom in or out.
Documents
Caldy is document-based. You can organize your calculation sheets like files, on your device or even on iCloud.
Trigonometry functions
Caldy has math functions, trigonometry functions.
Dark mode
Caldy supports dark mode.
Get Caldy the dynamic calculator from the Apple App Store
Contact
Follow us on X @CaldyApp.
Privacy notice
Caldy does not collect any user data. We do not have access to your Caldy documents. The documents are stored on your device or on Apple's iCloud Servers.