# Computer Science Calculations vs Dev Calc

The clearest difference is iOS requirement: Dev Calc at 13.0 against Computer Science Calculations's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Computer Science Calculations sells 3 in-app purchases, starting at $0.99 per 3 months and Dev Calc sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Computer Science Calculations ships an update monthly, Dev Calc every 2 months. The most recent releases landed on September 25, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Computer Science Calculations | Dev Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (2 ratings)](https://appshunter.io/ios/app/dev-calc-developer-calculator/id1576503219/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 26 MB | 51 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Egal Net di Ettore Gallina](https://appshunter.io/developer/993232047) | [Toshiya Hondo](https://appshunter.io/developer/1571875732) |

## What reviewers say

### Computer Science Calculations

[App page](https://appshunter.io/ios/app/computer-science-calculations/id1488787780)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Version (3 months) | $0.99 | per 3 months |
| PRO Version (1 year) | $2.49 | per year |
| PRO Version (Lifetime) | $89.99 | one-time |


### Dev Calc

[App page](https://appshunter.io/ios/app/dev-calc-developer-calculator/id1576503219)

This app assists developers and programmers with immediate numeric conversions between binary, octal, decimal, and hexadecimal formats. It also provides tools for generating color codes from RGB, HSL, and HSV values, with a color picker and preset options.

**Highlights:** Numeric conversion (Bin, Oct, Dec, Hex), Signed/Unsigned options, Adjustable bit sizes (8, 16, 32, 64), RGB, HSL, HSV color code generation, Color picker, Preset color options

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads (Monthly) | $1.99 | per month |


## Frequently asked questions

### Is Computer Science Calculations free?

Computer Science Calculations is free to download, with in-app purchases available.

### Is Dev Calc free?

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

### Do Computer Science Calculations or Dev Calc have ads?

Both Computer Science Calculations and Dev Calc show ads.

### Which is updated more often, Computer Science Calculations or Dev Calc?

Computer Science Calculations ships an update monthly, and Dev Calc every 2 months. Most recently, Computer Science Calculations was updated on September 25, 2026 and Dev Calc on June 4, 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.*