PCalc vs Calculator!
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!
Calculator!
This app offers a versatile calculator experience with both standard and scientific modes. Customize its appearance, use it in any orientation, and access additional tools like a notes tab and calculation history. It's designed for students and professionals needing accurate calculations.
- Standard and scientific calculator modes
- Customizable look (iPad only)
- Portrait and landscape orientation
- Notes and drawing tab
- Calculation history
- AirPrint and email support
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Calculator! is an easy to use, beautifully packaged calculator for your iPad or iPhone that includes both a standard and scientific calculator. Our versatile calculator app allows you to: • Customize the look of the application by changing the leather color and background texture (iPad Only) • Choose between a basic calculator or scientific calculator with more than 30 scientific operations • Use both calculators in portrait or landscape mode • Take notes or draw with your finger on the Notes Tab • View and edit a history of your calculations on the History Tab • Use Airprint to print your notes or your calculation history • Email your calculation history or notes from within the app • View an equation of your current calculations • Calculate with accuracy to more than 75 significant digits • Use parenthesis and nested parenthesis in your calculations We wrote Calculator! to be the perfect calculator for budding math students and professionals alike.
Screenshots
Verdict
The clearest difference is price: Calculator! at $0.99 against PCalc's $9.99. Calculator! also leads on ratings volume (4.3K vs 770) and iOS requirement (9.0 vs 15.0). PCalc's advantage is chart position (#83 vs unranked) and update cadence (every 6 weeks vs every 3 months). On rating, review sentiment, ads and in-app purchases 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
PCalc costs $9.99 and Calculator! $0.99 up front. PCalc sells 4 one-off in-app purchases and Calculator! sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.7 for PCalc against 4.8 for Calculator!. That said, the two scores are not equally well evidenced: Calculator! has 4.3K ratings behind it against 770, so its average is the more settled of the two. Written reviews are what separate them: 84% of PCalc's written reviews are positive against 86% of Calculator!'s.
PCalc ships an update every 6 weeks, Calculator! every 3 months. The most recent releases landed on October 18, 2026 and October 19, 2026 respectively.
| Parameter | PCalc | Calculator! |
|---|---|---|
| Price | $9.99 | $0.99 — better |
| Rating | 4.7 (770 ratings) | 4.8 (4.3K ratings) — better |
| Positive reviews | 83.6% of reviews | 86.0% of reviews — better |
| Number of ratings | 770 | 4.3K — better |
| Update frequency | Every 6 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #83 — better | — |
| Devices | iPhone, iPad, iPod, Apple Watch, Vision Pro — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 81 MB | 56 MB |
| Age rating | 4+ | 4+ |
| Developer | TLA Systems Ltd. | 7th Gear |
Customer experience
PCalc
Calculator!
Bugs and requests
PCalc
Not enough reviews yet to summarise bugs or requests.
Calculator!
Reported bugs
4 issues- Widget doesn't work as expected
- Calculation history not available in portrait mode
- Resizing issues on iPad Pro
- Slow startup times on older devices
Requested features
5 requests- Add unit conversion tools
- Improve calculation expression logic
- Allow notes to be viewed in portrait mode
- Implement a scratch paper area on the right side
- Add ability to sync data across devices
In-app purchases
PCalc
- Small Tip$0.99
- Medium Tip$1.99
- Large Tip$4.99
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- Enormous Tip$9.99
Calculator!
- Calculator$0.99
