# PCalc vs ExSciCalc

The clearest difference is price: ExSciCalc at $1.99 against PCalc's $9.99. ExSciCalc also leads on in-app purchases (none vs 4) and rating (5.0 vs 4.7). PCalc's advantage is ratings volume (772 vs 1) and device support (5 vs 2). On ads and iOS requirement there is nothing between them.

PCalc costs $9.99 and ExSciCalc $1.99 up front. PCalc sells 4 one-off in-app purchases. ExSciCalc asks for nothing beyond the download.

ExSciCalc holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: PCalc has 772 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 83% of PCalc's written reviews are positive against 100% of ExSciCalc's.

PCalc ships an update every 3 months, ExSciCalc every 3 weeks. The most recent releases landed on October 21, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | PCalc | ExSciCalc |
| --- | --- | --- |
| Price | $9.99 | **$1.99** |
| Rating | [4.7 (772 ratings)](https://appshunter.io/ios/app/pcalc/id284666222/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/exscicalc/id1625177287/reviews)** |
| Number of ratings | **772** | 1 |
| Positive reviews | 83.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 367 MB | 1 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch, Vision Pro** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TLA Systems Ltd.](https://appshunter.io/developer/284666225) | [Dale C Koepp](https://appshunter.io/developer/331525420) |

## What reviewers say

### PCalc

[App page](https://appshunter.io/ios/app/pcalc/id284666222)

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.

**Highlights:** Optional RPN mode, Multi-line display, Extensive unit conversions, Paper tape, Multiple undo/redo, Hexadecimal, octal, binary support, Apple Watch app

**Features:** Apple Watch app, iMessage stickers, Fun Camera support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $1.99 | one-time |
| Large Tip | $4.99 | one-time |
| Enormous Tip | $9.99 | one-time |


### ExSciCalc

[App page](https://appshunter.io/ios/app/exscicalc/id1625177287)

This calculator offers enhanced precision and memory beyond standard devices. It includes advanced functions for statistics, physics, and mathematics, alongside common calculations and unit conversions.

**Highlights:** Extended precision (30+ digits), Extended memory (main + 10 auxiliary), Scroll windows for button access, Statistical calculations, Physical and mathematical constants, Unit conversions, Roots of equations, Special relativity calculations

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PCalc free?

PCalc costs $9.99, and also offers in-app purchases.

### Is ExSciCalc free?

ExSciCalc costs $1.99, with no in-app purchases.

### Which has better reviews, PCalc or ExSciCalc?

ExSciCalc is rated higher. PCalc averages 4.7 out of 5 from 772 ratings, while ExSciCalc averages 5.0 from 1 ratings.

### Do PCalc or ExSciCalc have ads?

Neither PCalc nor ExSciCalc shows ads.

### Which is updated more often, PCalc or ExSciCalc?

PCalc ships an update every 3 months, and ExSciCalc every 3 weeks. Most recently, PCalc was updated on October 21, 2026 and ExSciCalc on October 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*