Calcsharp Pro vs PFD Calc
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Calcsharp Pro
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It uses a different approach from a conventional calculator, which is more natural to the way people calculate. When you calculate on a conventional calculator, each time you enter a new number you lose sight of the previous one. And if you make a mistake in the middle of a long expression, you have to start all over. In Calcsharp, you can see all of what you are calculating, and expressions can easily be edited and saved. Features: - Evaluate mathematical expressions step by step - Large number of built-in functions and operators - Large number of predefined mathematical and physical constants - Support for fractions - Supports for decimal, hexadecimal, octal and binary numbers - Works with "Infinity" and "Not-a-number" - Three kinds of parentheses - Unlimited size of expressions - Unlimited depth of nesting - Expression builder - Expression history - Three different chalkboard background (green, blue and black)
PFD Calc
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The app calculates prime factorization.
Screenshots
Verdict
The clearest difference is price: PFD Calc at Free against Calcsharp Pro's $1.99. Calcsharp Pro's advantage is ads (none vs shown) and update cadence (every 2 days vs every 5 weeks). On in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
PFD Calc is free to download; Calcsharp Pro costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Calcsharp Pro ships an update every 2 days, PFD Calc every 5 weeks. The most recent releases landed on September 22, 2026 and October 5, 2026 respectively.
| Parameter | Calcsharp Pro | PFD Calc |
|---|---|---|
| Price | $1.99 | Free โ better |
| Update frequency | Every 2 days โ better | Every 5 weeks |
| Ads | No โ better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 16.0 | 15.0 โ better |
| Further details โ not scored | ||
| Size | 4 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Nikola Stepan | Kazuhisa Kobayashi |
In-app purchases
Calcsharp Pro
No in-app purchases
PFD Calc
No in-app purchases
Questions
Is Calcsharp Pro free?
Is PFD Calc free?
Do Calcsharp Pro or PFD Calc have ads?
Which is updated more often, Calcsharp Pro or PFD Calc?
Other comparisons
