# Dev Calc vs 程序开发工具箱

The clearest difference is in-app purchases: 程序开发工具箱 at none against Dev Calc's 1. 程序开发工具箱 also leads on ads (none vs shown) and update cadence (every 6 days vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Dev Calc sells 1 in-app purchase, starting at $1.99 per month. 程序开发工具箱 asks for nothing beyond the download.

Dev Calc ships an update every 2 months, 程序开发工具箱 every 6 days. The most recent releases landed on June 4, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Dev Calc | 程序开发工具箱 |
| --- | --- | --- |
| 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 | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 6 days** |
| Monetization | Free with in-app purchases | — |
| Size | 51 MB | 8 MB |
| Requires iOS | 13.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Toshiya Hondo](https://appshunter.io/developer/1571875732) | [兆豪 梁](https://appshunter.io/developer/1576624708) |

## 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 |


### 程序开发工具箱

[App page](https://appshunter.io/ios/app/id1581732098)

**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 程序开发工具箱 free?

程序开发工具箱 is free to download, with no in-app purchases.

### Do Dev Calc or 程序开发工具箱 have ads?

Dev Calc shows ads; 程序开发工具箱 does not.

### Which is updated more often, Dev Calc or 程序开发工具箱?

Dev Calc ships an update every 2 months, and 程序开发工具箱 every 6 days. Most recently, Dev Calc was updated on June 4, 2026 and 程序开发工具箱 on September 15, 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.*