# Calculator basic : — Customize big button, Wallpape

> Customizable calculator with adjustable buttons, themes, and layouts. (iPhone/iPad app by Kenichi Yoshikawa.)

- Source: https://appshunter.io/ios/app/calculator-basic/id959434104 (this page in markdown: same URL + `.md`)
- Developer: [Kenichi Yoshikawa](https://appshunter.io/developer/954163256)
- Category: Utilities, Productivity
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings · 11 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 6 MB
- Languages: Arabic, English, French, German, Hindi, Italian, Japanese, Korean, Portuguese, Russian and 3 more
- Released: 2015-01-29
- Data updated: 2026-06-02
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/calculator-basic/id959434104/reviews.md

## What is Calculator basic?

Calculator Basic can change the position and the function of the button and set the wallpaper background freely, not to mention the color and the shape.
The screen layout will change automatically according to the portrait or landscape mode on your iPad and iPhone and the big buttons fitted to the size and mode of display are easy to view for the user.
Let's create your own calculator suitable for your tastes by using abundant setting well.

FEATURES :

Calculation :
- Two Calculation method: functional or sequential
- Three rounding mode: rounding , up or cut
- Number of digits after the decimal point: free , zero , one , two , three or four
- Angle unit: degree or radian

Appearance :
- Color or Wallpaper: Set the wallpaper with a photograph or a camera, or select a background color
- Number Format: Select a digit grouping and decimal point from among the 8 types including India format
- Sound of buttons : Select the button sound from nine timbres or turn off

Result:
- Character color: Freely set color by the slider
- Background color: Freely set color and opacity by the slider
- Expression color: Freely set color or hide by the slider

Button :
- Shape: Square , Round Square , Circle , Diamond , Heart or Cogwheel
- Size: Large , Medium or Small
- Dimensions: Flat , Solid or Outline
- Character color: Freely set color by the slider
- Background color: Freely set color and opacity by the slider
- Position: The position of buttons are freely changed
- Function button : Three function buttons can be changed, thease button is include Grand total, Rand, Sine,1/x, Route, etc...

History :
- Equals: Over write last result or Add the result the history
- Vertical (portrait) mode: Indication Left , Hidden or Indication Right
- Horizontal (landscape) mode: Indication place Left or Right
- character color: Freely set color by the slider
- background color: Freely set color and opacity by the slider
- Expression color: Freely set color or hide by the slider


SUPPORTS :

Non retina and Retina display on iPhone, iPad and iPod Touch.
iPhone 4 to 8 Plus, iPhone SE and iPhone X, iPad 2 to iPad Pro and iPad mini to iPad mini 4 , iPod touch 3gen and later.
iOS 8.0 and later.

There is also a paid version without ads.

## Key features

- Customizable button positions and functions
- Set custom wallpapers and background colors
- Adjustable button shapes, sizes, and dimensions
- Multiple calculation methods and rounding modes
- Free adjustment of character and background colors
- History log with overwrite or add options

## Recent user reviews (10 of 11)

All indexed reviews: https://appshunter.io/ios/app/calculator-basic/id959434104/reviews.md

### 5/5 — At last!

*2024-05-20, version 3.0.0*

I have found my perfect calculator, any buttons I don’t want I have replaced with buttons I do use.

### 5/5 — Great calculator

*2020-06-24, version 3.0.0*

So simple to use even stores the calculations from previous sums. Carry on with the same formate.

### 5/5 — 使いやすいです。

*2017-01-19, version 2.0.0*

背景やボタンの形，プッシュ音など自分の好きなように変えられます。その時の気分におおじて！

### 5/5 — 使いやすい

*2015-12-05, version 1.2.2*

見やすく、使いやすいです。

### 5/5 — かわいい

*2015-11-11, version 1.2.2*

デコレーションして使ってます。

### 5/5 — 設定めっちゃ多い

*2015-03-10, version 1.1.1*

単なる計算機なのに色、形、ボタン移動、取替、履歴が変更できるなんてGood！

### 5/5 — 唯一の計算機

*2015-03-10, version 1.1.1*

ボタンが取り替えられるのが本当にGood。
余計な機能はいらないし、自分だけの計算機が作れるのは他に無いと思います。
デザインもシンプルですてきです。

### 5/5 — 通常電卓

*2015-03-10, version 1.1.1*

元々入っている電卓アプリのような計算だけで無く、通常の電卓計算でくるところがとても気に入っています。売っている機械式の電卓から換えました。
メモ機能もあるといいな！

### 4/5 — なかなかよい

*2015-03-08, version 1.1.1*

凝ってる

### 4/5 — よいです

*2015-03-08, version 1.1.0*

iPadでみやすいです
式も見られのもいいです

## Frequently asked questions about Calculator basic

### What calculation methods does Calculator Basic support?

Calculator Basic supports two calculation methods: functional or sequential. It also offers three rounding modes: rounding, up, or cut, and allows for free selection of the number of digits after the decimal point.

### Can I change the appearance of Calculator Basic?

Yes, you can customize the appearance extensively. Set wallpapers with photos or camera images, choose background colors, select digit grouping and decimal point formats, and even change the sound of buttons from nine timbres.

### How does Calculator Basic handle button customization?

You can freely change the shape (Square, Circle, Diamond, Heart, Cogwheel), size (Large, Medium, Small), and dimensions (Flat, Solid, Outline) of buttons. Button positions are also freely adjustable, and three function buttons can be reassigned.

### Does Calculator Basic adapt to different screen orientations?

The screen layout automatically changes according to portrait or landscape mode on your iPad and iPhone. Big buttons are fitted to the size and mode of display for easy viewing.

### What devices and iOS versions are supported by Calculator Basic?

Calculator Basic supports non-retina and retina displays on iPhone, iPad, and iPod Touch. It is compatible with iPhone 4 to 8 Plus, iPhone SE, iPhone X, iPad 2 to iPad Pro, iPad mini to iPad mini 4, and iPod touch 3rd generation and later, running iOS 8.0 and later.

### How often is Calculator Basic updated?

The app was last updated on October 11, 2017, with version 3.0.0. While updates may not be frequent, the app has been stable and functional since its release in 2015.

### What is the user sentiment for Calculator Basic?

Based on the available data, Calculator Basic has a perfect rating of 5.0 stars from 2 ratings, indicating very positive user sentiment among its early users.

### Does Calculator Basic have ads?

No, Calculator Basic does not contain advertisements. There is also a paid version available that is without ads, reinforcing its ad-free nature.

## Version history (last 5 releases)

### 3.0.0 — 2017-10-11

This app has been updated by Apple to display the Apple Watch app icon.

Added support for iPhone X, 8 , 8 Plus And iOS 11

### 2.0.0 — 2016-09-20

Added support for iPhone 7, 7 Plus and iOS10.

### 1.2.3 — 2016-05-17

- Added button sound.
- Added the replace button of the Grand total and 1/x.
- Adjusted layout of the calculation results and equation.
- Other Fixed a minor bug.

### 1.2.2 — 2015-10-16

Fixed a bug that will remain button is selected.

### 1.2.1 — 2015-10-05

Add default button in button position change settings.
Bug fixes that line comes out next to the equation.
Translation modification.

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## More apps by Kenichi Yoshikawa

- [System Status -](https://appshunter.io/ios/app/system-status/id989442029)
- [System Status Lite -](https://appshunter.io/ios/app/system-status-lite/id992911130)
- [Customize Calculator](https://appshunter.io/ios/app/customize-calculator/id1042492126)
- [Calculator Pro basic](https://appshunter.io/ios/app/calculator-pro-basic/id1042600645)

All apps by Kenichi Yoshikawa: https://appshunter.io/developer/954163256

## Related topics

[kenichi yoshikawa](https://appshunter.io/ios/topics/kenichi-yoshikawa)

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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 2026-06-02.*