# Calc vs CompSci Calculator

The clearest difference is rating: CompSci Calculator at 4.4 against Calc's 3.9. CompSci Calculator also leads on in-app purchases (none vs 2) and update cadence (every 3 days vs every 2 months). Calc's advantage is ads (none vs shown) and review sentiment (81% vs 63%). On price, ratings volume and device support there is nothing between them.

Both are free to download. Calc sells 2 in-app purchases, starting at $0.99 per month. CompSci Calculator asks for nothing beyond the download.

CompSci Calculator holds the better App Store score, 4.4 against 3.9. Both are backed by a comparable volume of ratings — 28 and 42 respectively. Written reviews complicate that: 81% of Calc's written reviews are positive against 63% of CompSci Calculator's, so the app with the better star average is not the one people write more warmly about.

Calc ships an update every 2 months, CompSci Calculator every 3 days. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Calc | CompSci Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (28 ratings)](https://appshunter.io/ios/app/calc/id285807159/reviews) | **[4.4 (42 ratings)](https://appshunter.io/ios/app/compsci-calculator/id1111878012/reviews)** |
| Number of ratings | 28 | **42** |
| Positive reviews | **80.8% of reviews** | 62.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | **Free** | Ad-supported |
| Size | 1 MB | 55 MB |
| Requires iOS | 15.6 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mike Wesemann](https://appshunter.io/developer/285807162) | [Corey Smith](https://appshunter.io/developer/1070099434) |

## What reviewers say

### Calc

[App page](https://appshunter.io/ios/app/calc/id285807159)

A visually appealing and straightforward calculator app for iPhone and iPad. It offers a unique user interface with support for basic and scientific calculations, various number base conversions, and currency and unit conversions.

**Highlights:** Universal app for iPhone and iPad, Basic and scientific calculations, Number base conversions (decimal, hex, binary, octal), Currency and unit conversions, Scrollable calculation history, 10 color themes

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calc Pro | $0.99 | per month |
| Calc Pro | $4.99 | per year |

**What reviewers like**

- 🚀 Free app
- 👍 Simple and easy to use
- 📜 Tape/history feature
- 🎨 Customizable colors
- 📤 Ability to email calculations

**What reviewers complain about**

- 🐛 Crashes or freezes on some devices
- 🔊 Annoying key click sounds
- 📜 Scrolling to see recent calculations
- 🔍 Overcrowded interface with too many functions

**Reported bugs**

- Percentage calculations not working correctly
- Cos 90 showing incorrect result

**Requested features**

- Copy and paste support
- Larger buttons for easier use
- Ability to clear calculation history
- Auto-insert previous result when using operators
- Landscape mode support


### CompSci Calculator

[App page](https://appshunter.io/ios/app/compsci-calculator/id1111878012)

Perform calculations and conversions between decimal, hexadecimal, and binary bases in real-time. Ideal for programmers and computer scientists, it offers simultaneous display of values across all three modes and supports bitwise operations and complements.

**Highlights:** Decimal, hexadecimal, and binary base calculations, Real-time simultaneous conversion, Basic algebra between bases, Selectable bit size (8, 16, 24, 32), Bitwise functions, 1's and 2's complements

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Calc free?

Calc is free to download, with in-app purchases available.

### Is CompSci Calculator free?

CompSci Calculator is free to download, with no in-app purchases.

### Which has better reviews, Calc or CompSci Calculator?

CompSci Calculator is rated higher. Calc averages 3.9 out of 5 from 28 ratings, while CompSci Calculator averages 4.4 from 42 ratings.

### Do Calc or CompSci Calculator have ads?

CompSci Calculator shows ads; Calc does not.

### Which is updated more often, Calc or CompSci Calculator?

Calc ships an update every 2 months, and CompSci Calculator every 3 days. Most recently, Calc was updated on October 14, 2026 and CompSci Calculator on October 10, 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.*