# Programmer's Calculator — Hex compatible calculator

> Programmer's calculator for binary, decimal, and hexadecimal number systems. (iPhone/iPad app by Yuma Kitasei.)

- Source: https://appshunter.io/ios/app/programmers-calculator/id1467603958 (this page in markdown: same URL + `.md`)
- Developer: [Yuma Kitasei](https://appshunter.io/developer/1199831834)
- Category: Productivity
- Price: Free with in-app purchases
- Rating: 4.74/5 from 845 App Store ratings · 25 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 21 MB
- Languages: English, Japanese
- Released: 2019-06-15
- Data updated: 2026-08-22
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/programmers-calculator/id1467603958/reviews.md

## What is Programmer's Calculator?

A calculator for programmers that supports binary numbers, decimal numbers, and hexadecimal numbers.

Terms of Use : https://norche.jp/app_terms.html
Privacy Policy : https://norche.jp/app_policy.html

## Key features

- Binary number support
- Decimal number support
- Hexadecimal number support
- Number system conversions
- Programmer-focused calculations

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium member | $0.99 | per month |


## What do users think of Programmer's Calculator?

Overall sentiment: positive

**Pros**

- 🚀 Straightforward and highly functional
- 👍 Easy to use
- 💡 Useful for coding and calculations
- 👍 Practical for binary and hex operations
- 👍 Displays decimal, binary, and hex simultaneously

**Cons**

- 🐛 Ads take too long to click out of
- 🐛 Subscription did not remove ads
- 🐛 App freezes and crashes
- 🔋 High battery consumption

**Commonly reported bugs**

- Login screen freezes
- Incompatible with older devices

**Most requested features**

- Add octal support
- Implement RPN input mode
- Add 2's complement and bit shift functions
- Provide visual feedback on calculations
- Allow setting number of bits
- Add landscape mode support

## Recent user reviews (10 of 25)

All indexed reviews: https://appshunter.io/ios/app/programmers-calculator/id1467603958/reviews.md

### 5/5 — Awesome!

*2025-10-17, version 1.2.1*

I would gladly pay for this. That is, a one time payment and not with ads. Straightforward, highly functional, and easy to use. Thank you!

### 1/5 — B

*2025-10-10, version 1.2.1*

F

### 5/5 — Hello

*2024-11-11, version 1.2.1*

Hi

### 1/5 — Too many adds

*2024-09-18, version 1.2.1*

To many adds and they take a long time to click out of. This problem makes this a nonfunctional calculator. When a person needs to make a calculation it needs to be quick. That’s the whole reason for using a calculator!

### 3/5 — Needs A Bit More

*2024-09-16, version 1.2.1*

Very good for a first version, but some key features are missing. The lack of an octal line is strange, since it seems that the developer left space for it at the top. The app also should support landscape mode, as well as the option for RPN input.

### 3/5 — Nice

*2023-12-20, version 1.2.1*

Nice app if all you want is a converter, it should be able to add an subtract hex numbers

### 5/5 — Buy me a coffee link?

*2023-12-13, version 1.2.1*

Love that you can just switch to decimal and perform simple calculations and see the hex values. This is a great free app. Let us take care of you.

### 5/5 — Near perfect

*2023-03-23, version 1.2.1*

Would be great if user could set number of bits... and had 2’s comp function

### 5/5 — Useful little tool

*2023-03-05, version 1.2.1*

I acquired this to do some calculations in hex and some logic operations. Very useful for that purpose

### 5/5 — Awesome App

*2022-05-23, version 1.2.1*

It does exactly what it’s supposed to do and doesn’t have any ads. Love it and thank you!!

## Frequently asked questions about Programmer's Calculator

### What does the Programmer's Calculator app do?

The Programmer's Calculator app is designed to assist programmers with calculations and conversions across different number systems. It specifically supports binary, decimal, and hexadecimal number formats, making it a useful tool for development tasks.

### What number systems does this calculator support?

This calculator supports three primary number systems: binary (base-2), decimal (base-10), and hexadecimal (base-16). This allows users to easily switch between and perform operations on numbers represented in these common formats.

### Is the Programmer's Calculator app free to use?

The app is free to download and use. However, it does offer in-app purchases, suggesting that some features or functionalities might be unlocked or enhanced through optional purchases.

### Who would benefit from using a programmer's calculator?

Programmers, software developers, computer science students, and anyone who regularly works with or needs to convert between binary, decimal, and hexadecimal numbers will find this app beneficial. It simplifies complex number manipulations common in coding and system design.

## Version history (last 4 releases)

### 1.2.1 — 2020-12-02

Changes in Ver. 1.2.1
・Minor bug fixes

### 1.2.0 — 2019-12-10

Changes in Ver.1.2.0
・ Addition of copy / paste function
・ Addition of advertisement hiding function

### 1.1 — 2019-06-14

Fixed ad display timing issue.

### 1.0 — 2019-06-14

No release notes.

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All apps by Yuma Kitasei: https://appshunter.io/developer/1199831834

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-22.*