# Hex,Dec,Oct,Bin(Dev Calc)

> The Calculator for Developer Hex,Dec,Oct,Bin in one screen

Canonical page: [https://chrome-stats.com/d/yumekan.android.devcalc](https://chrome-stats.com/d/yumekan.android.devcalc)

## Overview

- **ID:** `yumekan.android.devcalc`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** 12KK
- **Category:** PRODUCTIVITY
- **Downloads:** 824,472
- **Rating:** 4.68 / 5 (6,147 ratings)
- **Version:** 2.3.12
- **Last updated:** 2026-07-27
- **First published:** 2014-02-07
- **Publisher country:** JP
- **Size:** 15 MB
- **Data as of:** 2026-09-12
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=yumekan.android.devcalc)
- **Website:** [https://daiweijie.com/apps/devcalc/](https://daiweijie.com/apps/devcalc/)
- **Privacy policy:** [https://daiweijie.com/apps/privacy-policy/](https://daiweijie.com/apps/privacy-policy/)

## Description

**Hex,Dec,Oct,Bin(Dev Calc)** is the ultimate all-in-one calculator designed specifically for developers. This extension enables seamless conversions and calculations across four numeral systems: binary, octal, decimal, and hexadecimal — all visible simultaneously on one screen for easy comparison and input.

Key features include support for a large display accommodating up to 19-digit decimal numbers, and a defined value range from 0xF000 0000 0000 0000 (minimum) up to 0x0FFF FFFF FFFF FFFF (maximum). Users can also toggle the conversion reset function ON or OFF to suit their workflow. This tool simplifies complex number system calculations and conversions, making it an essential utility for software engineers, programmers, and developers dealing with low-level data or memory representation.

## Rankings

- #76,267 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.WAKE_LOCK`
- `com.android.vending.BILLING`
- `com.google.android.gms.permission.AD_ID`
- `yumekan.android.devcalc.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

Users praise the app for its intuitive interface and ability to display and convert numbers across Hex, Decimal, Octal, and Binary simultaneously, making programming and engineering tasks easier. Additional features like RGB color mixing are appreciated. However, consistent complaints highlight that switching modes clears inputs, the app cannot handle mixed-base arithmetic operations properly, lacks certain advanced calculation functions, and some minor usability issues like absence of backspace in color mixer and no clear purchase option.

### Pros

- Displays numbers simultaneously in multiple formats: Hex, Decimal, Octal, and Binary.
- Simple and straightforward interface, making it easy to use for conversions and calculations.
- Supports multiple layouts and converts between various number bases efficiently.
- Includes additional features like an RGB colour mixer and programming-related calculations.
- Reliable and helpful for programming, firmware development, and students in processors and controllers.

### Cons

- Switching between input modes or bases clears the current input or results, causing inconvenience during mixed calculations.
- Does not support arithmetic operations involving mixed number bases (e.g., Hex plus Decimal) without resetting or errors.
- Lacks some advanced features such as bit shifting, logical AND/OR operations, and progressive additions (like a+b+c).
- Missing a backspace feature in the RGB converter, requiring users to clear and restart on mistakes.
- No clear option to purchase an ad-free version or support the developers financially.

## Similar extensions and apps

- [Hex, Bin, Oct Calculator | Dev](https://chrome-stats.com/d/xyz.micrusa.devcalc) — 120 users
- [Base Calculator : Bin,Hex,Dec](https://chrome-stats.com/d/com.github.xiaofei_dev.radix) — 1,527 users, 4.88 / 5
- [HEX Calculator](https://chrome-stats.com/d/com.drifting.hex_calculator) — 31 users
- [Dev Calc -Developer Calculator](https://chrome-stats.com/d/com.coconuts.devcalc) — 23,004 users
- [Hexanary - Calculator](https://chrome-stats.com/d/grapple.app.hexanary) — 65 users
- [Binary Decimal Converter](https://chrome-stats.com/d/com.bondnet.calcbin) — 215,396 users, 3.82 / 5
- [Calculator (HEX, BIN, DEC)](https://chrome-stats.com/d/kr.co.miamano.calculator_ad) — 285 users
- [Calculator (HEX, BIN, DEC)](https://chrome-stats.com/d/kr.co.miamano.calculator) — 1 users
- [Binary Decimal Hex Converter](https://chrome-stats.com/d/com.yokobo.BinaryDecimalCalc) — 52 users
- [Hex Converter Plus](https://chrome-stats.com/d/com.HexPlus) — 137,160 users, 4.39 / 5
- [Programmers Calculator](https://chrome-stats.com/d/com.bigmicrotech.programmerscalculator) — 15 users
- [Calculator +HEX](https://chrome-stats.com/d/io.github.gitmaruri.calculatorhexeng) — 197 users

---

Source: [Chrome-Stats](https://chrome-stats.com/d/yumekan.android.devcalc)