# Graycode vs レコーダー

The clearest difference is price: レコーダー at Free against Graycode's $2.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

レコーダー 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, レコーダー every 20 months. The most recent releases landed on August 26, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Graycode | レコーダー |
| --- | --- | --- |
| 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 20 months |
| Monetization | Paid | — |
| Size | 2 MB | 1 MB |
| Requires iOS | **12.0** | 12.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Duo Pisceses, Inc.](https://appshunter.io/developer/850707063) | [SpeakBUDDY Ltd.](https://appshunter.io/developer/633270154) |

## 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


### レコーダー

[App page](https://appshunter.io/ios/app/id1469874020)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Graycode free?

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

### Is レコーダー free?

レコーダー is free to download, with no in-app purchases.

### Do Graycode or レコーダー have ads?

Neither Graycode nor レコーダー shows ads.

### Which is updated more often, Graycode or レコーダー?

Graycode ships an update every 10 months, and レコーダー every 20 months. Most recently, Graycode was updated on August 26, 2026 and レコーダー on September 19, 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.*