PCalc vs Haseba 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!
Haseba Calculator
This app offers a user-friendly calculator with both basic and scientific functions. It features a clean interface, voice input, and convenient history tracking. Advanced options include memory slots for storing values and applying operations to them.
- Scientific calculator
- Voice calculator
- Calculation history
- Copy and paste functionality
- Dynamic themes
- Memory slots with operations
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While building Haseba, we focused most of our energy on the user interface. We think that the key to any great app is a beautiful, and simple design that works seamlessly with the app's features. • Scientific Calculator • Voice Calculator • History (Swipe down in the display area) • Copy and Paste • Dynamic Light / Dark Themes (and icons) • Larger Buttons Option • Available on Apple Watch Memory Slots • Save a value inside one of 11 memory slots to use them in calculations later • A value may be the result of a previous calculation, or pasted from the clipboard into a memory slot • The process to store a value in a memory slot is very easy and fast, just drag down a memory slot • Copy memory slot value to clipboard • After having a set of occupied memory slots, you can apply one of six different operations on them in one tap: sum, average, product, median, max, min, of the occupied memory slots. ___________________________________________ Terms & Privacy: https://bit.ly/haseba-terms-privacy Need help or have questions? Reach out to us at haseba-app@hotmail.com
Screenshots
Verdict
The clearest difference is price: Haseba Calculator at Free against PCalc's $9.99. Haseba Calculator also leads on ratings volume (3.8K vs 779). PCalc's advantage is device support (5 vs 3) and iOS requirement (15.0 vs 17.0). On rating, review sentiment, update cadence 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
Haseba Calculator is free to download; PCalc costs $9.99 up front. PCalc sells 4 one-off in-app purchases and Haseba Calculator sells 7 in-app purchases, starting at $0.99 per 7 days. 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 4.6 for Haseba Calculator. Both are backed by a comparable volume of ratings — 779 and 3.8K respectively. Written reviews are what separate them: 83% of PCalc's written reviews are positive against 78% of Haseba Calculator's.
PCalc ships an update every 6 weeks, Haseba Calculator every 2 months. Both last shipped on November 6, 2026.
| Parameter | PCalc | Haseba Calculator |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 4.7 (779 ratings) — better | 4.6 (3.8K ratings) |
| Positive reviews | 83.4% of reviews — better | 78.1% of reviews |
| Number of ratings | 779 | 3.8K — better |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Apple Watch, Vision Pro — better | iPhone, iPad, Apple Watch |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 83 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | TLA Systems Ltd. | Ahmad Almazeedi |
Customer experience
PCalc
Haseba Calculator
Bugs and requests
PCalc
Not enough reviews yet to summarise bugs or requests.
Haseba Calculator
Reported bugs
2 issues- Calculation errors with certain inputs
- Inability to edit or copy results
Requested features
3 requests- Add history and editing capabilities
- Support for hardware keyboard
- Improve percentage calculation accuracy
In-app purchases
PCalc
- Small Tip$0.99
- Medium Tip$1.99
- Large Tip$4.99
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- Enormous Tip$9.99
Haseba Calculator
- Voice Mode$0.997 Days
- Haseba Voice Mode$2.991 Month
- Haseba Voice Mode$19.991 Year
- Unlock Themes & Icons$0.99
- HasebaPro$2.99
- HasebaPro$3.99
Show 1 moreShow fewer
- HasebaPro$4.99









