# Dev Calc vs Geek's hexadecimal calculator

The clearest difference is price: Dev Calc at Free against Geek's hexadecimal calculator's $1.99. Dev Calc also leads on update cadence (every 2 months vs every 41 months) and iOS requirement (13.0 vs 18.6). Geek's hexadecimal calculator's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

Dev Calc is free to download; Geek's hexadecimal calculator costs $1.99 up front. Dev Calc sells 1 in-app purchase, starting at $1.99 per month. Geek's hexadecimal calculator asks for nothing beyond the download.

Dev Calc ships an update every 2 months, Geek's hexadecimal calculator every 41 months. The most recent releases landed on October 7, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Dev Calc | Geek's hexadecimal calculator |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| 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 | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 41 months |
| Monetization | Free with in-app purchases | — |
| Size | 51 MB | 2 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [Toshiya Hondo](https://appshunter.io/developer/1571875732) | [Tai Yamaguchi](https://appshunter.io/developer/1687792052) |

## What reviewers say

### 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 |


### Geek's hexadecimal calculator

[App page](https://appshunter.io/ios/app/geeks-hexadecimal-calculator/id6449144522)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Dev Calc free?

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

### Is Geek's hexadecimal calculator free?

Geek's hexadecimal calculator costs $1.99, with no in-app purchases.

### Do Dev Calc or Geek's hexadecimal calculator have ads?

Dev Calc shows ads; Geek's hexadecimal calculator does not.

### Which is updated more often, Dev Calc or Geek's hexadecimal calculator?

Dev Calc ships an update every 2 months, and Geek's hexadecimal calculator every 41 months. Most recently, Dev Calc was updated on October 7, 2026 and Geek's hexadecimal calculator on September 30, 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.*