PCalc vs Numerical³
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PCalc
A powerful calculator designed for professionals and students, offering advanced features like RPN mode, multi-line display, and extensive unit conversions. It supports various number systems and includes an Apple Watch app for on-the-go calculations.
- Optional RPN mode
- Multi-line display
- Extensive unit conversions
- Paper tape
- Multiple undo/redo
- Hexadecimal, octal, binary support
- Apple Watch app
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PCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody looking for a feature rich calculator. It includes an optional RPN mode and multi-line display, a choice of button layouts, an extensive set of unit conversions and constants, a paper tape, multiple undo and redo, engineering and scientific notation, as well as support for hexadecimal, octal, and binary calculations. Includes an Apple Watch app, so you can calculate on your wrist!
Numerical³
A powerful and beautifully designed calculator app that offers advanced scientific functions, automatic bracket handling, and a unique no-equals button interface. It integrates seamlessly with iOS features like widgets and keyboards for calculations anywhere.
- No equals button interface
- Automatic bracket handling
- Full scientific keypad
- Today Widget integration
- Numerical² Keyboard for any app
- Equation editing
- Customizable themes
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Numerical³ is still the calculator without equal. The first Numerical shipped in 2014—v3 brings long-requested improvements and the same focus on delightful, minimalist utility apps.MAC TOONumerical runs natively on macOS: multiple windows, tabs, resizing, desktop widgets, full keyboard support, and synced history. Download it on the Mac App Store.WIDGETSLock screen and Home Screen widgets—modernized on iPhone and iPad.THEMESBrand-new neo-morphic themes alongside our most popular picks—each with light and dark variants that follow your iOS appearance settings. Use the Theme Picker to preview them all.ICONSTheme Home Screen icons match iOS 26 with glass effects, Dark Mode, and tints.HISTORYYour equations stay visible on screen—above the keyboard on iPhone (portrait) and to the side on iPad and Mac. iCloud keeps history in sync across iPhone, iPad, and Mac.KEYBOARDSExternal keyboards are fully supported on iPhone, iPad, and macOS—including the shortcuts you expect.SOUND FXSounds and clicky feedback on iPhone, iPad, and Mac. Haptics on iPhone.14+ LANGUAGESThe entire app is localized in 14+ languages—including Japanese, Chinese, Korean, and Russian—with international digits and formats. Missing yours? Let us know.Mana Machines—Numerical³ and upcoming apps from a studio focused on delightful, minimal, human-centered utilities. More on the way.Questions or feedback: manamachineventures@gmail.comDeveloped by Andrew J Clark. Designed by Andrew J Clark & Alex Vanderzon.
Screenshots
Verdict
The clearest difference is price: Numerical³ at Free against PCalc's $9.99. Numerical³ also leads on in-app purchases (none vs 4) and update cadence (every 2 weeks vs every 6 weeks). PCalc's advantage is review sentiment (84% vs 75%) and device support (5 vs 3). On rating, ratings volume and ads 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
Numerical³ is free to download; PCalc costs $9.99 up front. PCalc sells 4 one-off in-app purchases. Numerical³ asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.7 for PCalc against 4.8 for Numerical³. Both are backed by a comparable volume of ratings — 770 and 1.3K respectively. Written reviews are what separate them: 84% of PCalc's written reviews are positive against 75% of Numerical³'s.
PCalc ships an update every 6 weeks, Numerical³ every 2 weeks. The most recent releases landed on September 30, 2026 and October 1, 2026 respectively.
| Parameter | PCalc | Numerical³ |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 4.7 (770 ratings) | 4.8 (1.3K ratings) — better |
| Positive reviews | 83.6% of reviews — better | 75.4% of reviews |
| Number of ratings | 770 | 1.3K — better |
| Update frequency | Every 6 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod, Apple Watch, Vision Pro — better | iPhone, iPad, Mac |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 81 MB | 113 MB |
| Age rating | 4+ | 4+ |
| Developer | TLA Systems Ltd. | Andrew J Clark |
Customer experience
PCalc
Numerical³
Bugs and requests
PCalc
Not enough reviews yet to summarise bugs or requests.
Numerical³
Reported bugs
3 issues- Unresponsive keys
- Calculation errors
- Crashes on startup
Requested features
5 requests- Add scientific functions (square root, trigonometry, etc.)
- Implement an equals button
- Add more theme options
- Develop an iPad version
- Bring back widget support
In-app purchases
PCalc
- Small Tip$0.99
- Medium Tip$1.99
- Large Tip$4.99
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- Enormous Tip$9.99
Numerical³
No in-app purchases









