# Simple Hex Calc

> IT programmer's pocket calculator for arithmetic, logical, and memory operations. (iPhone/iPad app by Hiroki Ishiura.)

- Source: https://appshunter.io/ios/app/simple-hex-calc/id335773208 (this page in markdown: same URL + `.md`)
- Developer: [Hiroki Ishiura](https://appshunter.io/developer/335773211)
- Category: Utilities, Education
- Price: $0.99
- Rating: 4.50/5 from 8 App Store ratings · 34 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.2 · 1 MB
- Languages: American English, Japanese
- Released: 2009-11-01
- Data updated: 2026-08-13
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/simple-hex-calc/id335773208/reviews.md

## What is Simple Hex Calc?

Simple Hex Calc is a simple pocket calculator for IT programmers.

Features:
* Arithmetic operations. (add, subtract, multiply, divide, modulo)
* Logical operations. (not, and, or, xor, '+', '-')
* Logical operations. (bit shift/rotate, bit set/clear, flip bit/byte order)
* Memory operations. (clear, save, load, swap)
* Switch the base 2/8/10/16 number on input.
* Switch simple and extended mode by rotating device.
* Switch simple and extended mode by swiping the left and right edge of screen.
* Calculate the order entered. (2+2*2=8)
* Cut, copy or paste the result by a tap.
* Configure bit length option. (select 1 - 64 bit)
* Configure signed/unsigned option.
* Configure to display data format on/off option.
* Configure to display data in previous base on/off option.
* Configure grouping separator for BIN, OCT and HEX mode.
* Configure tap sound on/off option.
* Reference manual included.
* Integer only. :-)

## Key features

- Arithmetic and logical operations
- Multiple number base support (2/8/10/16)
- Bit shift, rotate, set, clear, and order operations
- Memory operations (save, load, swap)
- Configurable bit length and signed/unsigned modes
- Cut, copy, and paste results
- Reference manual included

## Recent user reviews (10 of 34)

All indexed reviews: https://appshunter.io/ios/app/simple-hex-calc/id335773208/reviews.md

### 5/5 — 更なる希望

*2022-05-11*

とても使いやすいです
希望として3点あります
1、2進表記のとき該当ビットをタップすると反転するとうれしい
2、希望桁に対してゼロ埋めしたい
3、選択した表記以外もどこかに表示して欲しい
以上、期待します

### 5/5 — Solid app

*2019-09-16*

Thank you, dear dev, for having enough faith in users to put out a great paid app with no ads or in-app purchases. It’s ridiculous what some apps have become.

Totally worth a dollar. And look at that download size: less than 10MB!! In 2019!!

### 4/5 — Great app except...

*2017-03-27*

AND function doesn't work as expected. E.g. Binary 110 and 11 returns 0?? Expected 10

**Developer response:** Thanks a bug report. I'll fix it on the next version. The issue occurs by  'AC/C' after '='. Try workaround that double tap 'AC/C'.

### 5/5 — Well worth it!

*2017-03-07*

Wished I had gotten this before my last TCP/IP class test since it would have made it much easier than doing manual calculations of hex to decimal! Only thing I wished this had was somewhere to switch to basic calculator since I find myself having to switch from this to iOS calculator just to do simple math with percentages and decimals. All in all awesome app!

### 5/5 — MODが重宝

*2016-12-12*

便利です。よくぞMOD計算（モジュロ計算＝わり算のあまり算）を付けてくれました！このために買いましたから！

### 5/5 — Just what I wanted!

*2016-12-08*

This calc is amazing. It is exactly what I was looking for! It even looks like the standard iOS calculator, which is really nice. Also, it has a manual that tells you exactly what each feature does. I pretty much NEVER pay for apps, but this is well worth the 99 cents. (Not a paid review)

### 5/5 — Quality

*2016-06-29*

The best!

### 4/5 — One problem

*2016-06-18*

The MOD operator doesn't work. It always returns 0 even when that is the wrong answer. Otherwise I like this app.

**Developer response:** I guess this issue occurs by 'AC/C' after '='. if then try workaround that double tap 'AC/C'. I'll fix it on the next version.

### 5/5 — Even a manual!!!

*2016-05-08*

No flaws and comes with a manual, it's perfect. Maybe RPN for an encore. But seriously, a perfect app!

### 5/5 — Great Calculator!

*2016-04-09*

I have been using this app for a long time now. Still love it.

## Frequently asked questions about Simple Hex Calc

### What is Simple Hex Calc?

Simple Hex Calc is a pocket calculator designed for IT programmers. It supports arithmetic and logical operations, multiple number bases, and various bit manipulation functions.

### What number bases does Simple Hex Calc support?

Simple Hex Calc allows you to switch the input number base between binary (2), octal (8), decimal (10), and hexadecimal (16).

### Can Simple Hex Calc handle bitwise operations?

Yes, Simple Hex Calc supports a range of logical operations including bit shifts, rotations, setting/clearing bits, and flipping bit order.

### Does Simple Hex Calc have ads?

No, Simple Hex Calc does not contain advertisements.

### What is the price of Simple Hex Calc?

Simple Hex Calc is a paid application, priced at $0.99.

### What devices is Simple Hex Calc compatible with?

Simple Hex Calc is available for iPhone, iPad, and iPod touch devices.

### How often is Simple Hex Calc updated?

The latest version, 5.2, was released on December 7, 2019. Updates are not very frequent, with the last update being over four years ago.

### What is the age rating for Simple Hex Calc?

Simple Hex Calc has an age rating of 4+, making it suitable for a wide range of users.

## Version history (last 5 releases)

### 5.2 — 2019-12-07

* Improved UI.
* Supported iOS 13.2.

### 5.1 — 2018-06-18

* Added a feature that to switch simple and extended mode by swiping the left and right edge of screen.
* Improved appearance of some buttons.
* Improved flip animation of Bit buttons.

### 5.0 — 2018-06-12

* Changed the application name.
* Fixed an issue where the calculation after the equal button might be incorrect.
* Fixed an issue where the minus sign of text to be pasted is ignored.
* Localized grouping separator in DEC mode.
* Supported customization of grouping separator for BIN, OCT and HEX mode.
* Supported iOS 11 and iPhone X.

### 4.0.1587 — 2016-09-21

Supported iOS 10.

### 3.3.1498 — 2016-09-06

Fixed an issue that STB and CTB doesn't work correctly.

## Apps similar to Simple Hex Calc

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [RMS Calculator](https://appshunter.io/ios/app/rms-calculator/id1511092361) | — | $1.99 | Utilities |
| [Bin Oct Dec Hex Calculator](https://appshunter.io/ios/app/bin-oct-dec-hex-calculator/id1645215486) | — | $2.99 | Utilities |
| [NVR UMViewer](https://appshunter.io/ios/app/nvr-umviewer/id6749358031) | — | Free | Utilities |
| [Scientific Calculator DES-38D](https://appshunter.io/ios/app/scientific-calculator-des-38d/id1379779839) | 4.3 (3) | $5.99 | Utilities |
| [HEXCalc(binary conversion)](https://appshunter.io/ios/app/hexcalcbinary-conversion/id996038221) | — | $0.99 | Utilities |
| [Matrix Calc Plus](https://appshunter.io/ios/app/matrix-calc-plus/id1592961256) | — | $2.99 | Utilities |

## More apps by Hiroki Ishiura

- [Unix Time Converter](https://appshunter.io/ios/app/unix-time-converter/id376631084)
- [PLAY OPC](https://appshunter.io/ios/app/play-opc/id999316498)

All apps by Hiroki Ishiura: https://appshunter.io/developer/335773211

---

*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 2026-08-13.*