TechniCalc Calculator vs Caldy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TechniCalc Calculator
This app offers a modern, intuitive interface for complex calculations, supporting scientific, engineering, and advanced mathematical functions. It allows natural equation entry, provides a formula book, and includes unit and currency converters. Available across Apple devices, it caters to students and professionals needing a powerful calculation tool.
- Natural equation entry
- Advanced math engine
- Formula book and equations
- Unit and currency converter
- Statistics mode
- Equation solvers
- Supports multiple Apple devices
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TechniCalc is every bit functional as it is beautiful. The modern interface that makes a clean break from traditional pocket calculators. Equations are entered in a natural way, adhering to every detail of hand-written maths. The advanced maths engine also makes this the only calculator you'll ever need. ◉ FEATURES ▸ Runs on iPhone, iPad, and macOS - with an Apple Watch companion ▸ Dark mode ▸ Supports split screen and wireless keyboards ▸ Shows the full equation as you type ▸ Basic calculations (+, -, ×, ÷, %) ▸ Brackets ▸ Square and cubic roots ▸ Exponents and logarithms ▸ Trigonometry (sin, cos, tan) ▸ Degrees, radians, and gradians ▸ Constants (pi, e, and over 100 other physical constants) ▸ Formula book and equations ▸ Calculation history ▸ Unit converter ▸ Currency converter ▸ Statistics mode ◉ ADVANCED MATHS ▸ Almost unlimited number sizes - over 1,000,000 factorial ▸ Square roots and logarithms with any base ▸ Factorial, nPr, nCr, and gamma ▸ Hyperbolic trigonometry (sinh, cosh, tanh) ▸ Vectors and matrices ▸ Imaginary and complex numbers ▸ Series sums and products ▸ Numerical integration and differentiation ▸ Binary, octal, and hexadecimal ▸ Programmer mode ◉ EQUATION SOLVERS ▸ Quadratic ▸ Cubic ▸ Systems of 2 and 3 linear equations ▸ Root finder
Caldy
This app offers a visual approach to calculations, linking values with arrows and allowing for dynamic editing of expressions. It supports organizing calculations into documents, plotting expressions, and includes various math functions. Ideal for complex calculations beyond basic arithmetic.
- Visual calculation linking
- Editable expressions with automatic updates
- Document-based organization
- Plotting and zooming capabilities
- Trigonometry and math functions
- Dark mode support
- Export sheets as images
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When you need more than a basic calculator, but do not want a spreadsheet. Caldy is a visual calculator: linked values are clearly shown with connecting arrows. The history is right in front of you. Caldy is a dynamic calculator: any number or operation can be changed and the linked expressions are updated automatically. Numbers can have labels, making the expressions easier to read. Results can be dragged and dropped on placeholders to connect expressions. Sub-expressions can be extracted to structure complex calculations. Sub-expressions can be extracted to structure complex calculations. Caldy percentage increase function, very handy to calculate tips or tax such as VAT. Caldy can plot expressions. Plots are zoomable and dynamic as well. Pinch on the plot to zoom in or out. Caldy is document-based. You can organize your calculation sheets like files, on your device or even on iCloud. Caldy has math functions, trigonometry functions. Caldy supports dark mode. All Clear button to clear the sheet. Undo and redo buttons. Cursor move buttons (left and right). Export to share the sheet as an image. A new intuitive calculator. - Familiar interface - Edit expressions anywhere anytime, results are updated automatically - Multiple sheets - Plots, pinch to change X range - Dark mode - Trigonometry functions, exponential, logarithm, percentage increase, absolute function - Add labels to numbers - Swap operands, extract subexpressions, move expressions
Screenshots
Verdict
The clearest difference is rating: TechniCalc Calculator at 4.7 against Caldy's 2.0. TechniCalc Calculator also leads on review sentiment (85% vs 57%) and ratings volume (83 vs 2). Caldy's advantage is in-app purchases (none vs 4) and price ($2.99 vs $7.99). On ads and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
TechniCalc Calculator costs $7.99 and Caldy $2.99 up front. TechniCalc Calculator sells 4 one-off in-app purchases. Caldy asks for nothing beyond the download.
TechniCalc Calculator holds the better App Store score, 4.7 against 2.0. That said, the two scores are not equally well evidenced: TechniCalc Calculator has 83 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 85% of TechniCalc Calculator's written reviews are positive against 57% of Caldy's.
TechniCalc Calculator ships an update monthly, Caldy fortnightly. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.
| Parameter | TechniCalc Calculator | Caldy |
|---|---|---|
| Price | $7.99 | $2.99 — better |
| Rating | 4.7 (83 ratings) — better | 2.0 (2 ratings) |
| Positive reviews | 84.6% of reviews — better | 57.1% of reviews |
| Number of ratings | 83 — better | 2 |
| Update frequency | Monthly | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, Mac, Apple Watch — better | iPhone |
| Requires iOS | 17.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 31 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Jacob Parker | Alventir Ltd |
Customer experience
TechniCalc Calculator
Caldy
In-app purchases
TechniCalc Calculator
- Every Little Helps$0.99
- Coffee-Sized Tip$2.99
- Lunch-Sized Tip$4.99
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- Pizza-Sized Tip$9.99
Caldy
No in-app purchases









