# CompSci Calculator vs SuBinary 10

The clearest difference is rating: SuBinary 10 at 5.0 against CompSci Calculator's 4.4. CompSci Calculator's advantage is in-app purchases (none vs 1) and update cadence (every 3 days vs every 6 weeks). On price, ads and device support there is nothing between them.

Both are free to download. SuBinary 10 sells 1 one-off in-app purchase. CompSci Calculator asks for nothing beyond the download.

SuBinary 10 holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: CompSci Calculator has 42 ratings behind it against 3, so its average is the more settled of the two.

CompSci Calculator ships an update every 3 days, SuBinary 10 every 6 weeks. Both last shipped on November 2, 2026.

## The numbers

| Metric | CompSci Calculator | SuBinary 10 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (42 ratings)](https://appshunter.io/ios/app/compsci-calculator/id1111878012/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/subinary-10/id1434307389/reviews)** |
| Number of ratings | **42** | 3 |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Every 6 weeks |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 55 MB | 15 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Corey Smith](https://appshunter.io/developer/1070099434) | [Enes Akkus](https://appshunter.io/developer/1416782412) |

## What reviewers say

### 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


### SuBinary 10

[App page](https://appshunter.io/ios/app/subinary-10/id1434307389)

Easily convert between binary, decimal, hexadecimal, and octal number systems. Simply input your values into the text area and let the application perform the conversions for you.

**Highlights:** Binary to Decimal conversion, Hexadecimal to Octal conversion, Supports multiple number systems, Intuitive text input, Real-time conversions

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is CompSci Calculator free?

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

### Is SuBinary 10 free?

SuBinary 10 is free to download, with in-app purchases available.

### Which has better reviews, CompSci Calculator or SuBinary 10?

SuBinary 10 is rated higher. CompSci Calculator averages 4.4 out of 5 from 42 ratings, while SuBinary 10 averages 5.0 from 3 ratings.

### Do CompSci Calculator or SuBinary 10 have ads?

Both CompSci Calculator and SuBinary 10 show ads.

### Which is updated more often, CompSci Calculator or SuBinary 10?

CompSci Calculator ships an update every 3 days, and SuBinary 10 every 6 weeks. Most recently, CompSci Calculator was updated on November 2, 2026 and SuBinary 10 on November 2, 2026.

---

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