# Graycode vs Roman Number Converter

The clearest difference is price: Roman Number Converter at Free against Graycode's $2.99. Graycode's advantage is iOS requirement (12.0 vs 26.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Roman Number Converter is free to download; Graycode costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Graycode ships an update every 10 months, Roman Number Converter every 5 months. The most recent releases landed on September 25, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Graycode | Roman Number Converter |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/graycode/id548428653/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 5 months** |
| Monetization | Paid | — |
| Size | 2 MB | 10 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Duo Pisceses, Inc.](https://appshunter.io/developer/850707063) | [STRICS IT GmbH](https://appshunter.io/developer/1498799328) |

## What reviewers say

### Graycode

[App page](https://appshunter.io/ios/app/graycode/id548428653)

This utility converts numbers between decimal, hexadecimal, binary, and Gray code formats. Changes to one value automatically update the others, making it a convenient tool for engineers. It also features an animated demonstration of the Tower of Hanoi puzzle.

**Highlights:** Decimal, hex, binary, Gray code conversion, Real-time updates, Handy calculator for engineers, Animated Tower of Hanoi solution, Supports iPhone, iPad, iPod

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

**In-app purchases:** none


### Roman Number Converter

[App page](https://appshunter.io/ios/app/roman-number-converter/id1498843450)

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

**In-app purchases:** none


## Frequently asked questions

### Is Graycode free?

Graycode costs $2.99, with no in-app purchases.

### Is Roman Number Converter free?

Roman Number Converter is free to download, with no in-app purchases.

### Do Graycode or Roman Number Converter have ads?

Neither Graycode nor Roman Number Converter shows ads.

### Which is updated more often, Graycode or Roman Number Converter?

Graycode ships an update every 10 months, and Roman Number Converter every 5 months. Most recently, Graycode was updated on September 25, 2026 and Roman Number Converter on October 1, 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.*