# Convex Programmer's Calculator vs CompSci Calculator

The clearest difference is ads: Convex Programmer's Calculator at none against CompSci Calculator's shown. Convex Programmer's Calculator also leads on rating (4.7 vs 4.4) and monetization model (free vs ad-supported). CompSci Calculator's advantage is update cadence (every 3 days vs every 8 months) and ratings volume (42 vs 6). On price, review sentiment and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Convex Programmer's Calculator holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: CompSci Calculator has 42 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 67% of Convex Programmer's Calculator's written reviews are positive against 63% of CompSci Calculator's.

Convex Programmer's Calculator ships an update every 8 months, CompSci Calculator every 3 days. The most recent releases landed on September 27, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Convex Programmer's Calculator | CompSci Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (6 ratings)](https://appshunter.io/ios/app/convex-programmers-calculator/id1021414602/reviews)** | [4.4 (42 ratings)](https://appshunter.io/ios/app/compsci-calculator/id1111878012/reviews) |
| Number of ratings | 6 | **42** |
| Positive reviews | **66.7% of reviews** | 62.5% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 3 days** |
| Monetization | **Free** | Ad-supported |
| Size | 0 MB | 55 MB |
| Requires iOS | 16.0 | **10.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Matthew Daigle](https://appshunter.io/developer/1021414601) | [Corey Smith](https://appshunter.io/developer/1070099434) |

## What reviewers say

### Convex Programmer's Calculator

[App page](https://appshunter.io/ios/app/convex-programmers-calculator/id1021414602)

Convert numbers between hexadecimal, decimal, octal, and binary. Perform byte flips, bit shifts, and calculate two's complement. Features bit indicators and word grouping for improved binary readability.

**Highlights:** Number base conversion, Two's complement calculation, Byte flipping for endianness, Left and right bit shifting, Binary readability enhancements, Copy, paste, and clear functionality

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Convex Programmer's Calculator free?

Convex Programmer's Calculator is free to download, with no in-app purchases.

### Is CompSci Calculator free?

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

### Which has better reviews, Convex Programmer's Calculator or CompSci Calculator?

Convex Programmer's Calculator is rated higher. Convex Programmer's Calculator averages 4.7 out of 5 from 6 ratings, while CompSci Calculator averages 4.4 from 42 ratings.

### Do Convex Programmer's Calculator or CompSci Calculator have ads?

CompSci Calculator shows ads; Convex Programmer's Calculator does not.

### Which is updated more often, Convex Programmer's Calculator or CompSci Calculator?

Convex Programmer's Calculator ships an update every 8 months, and CompSci Calculator every 3 days. Most recently, Convex Programmer's Calculator was updated on September 27, 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.*