# Simple Calculator・Easy & Cool — Simple and easy Calculator

> A simple, intuitive, and ad-supported calculator app with a clean design. (iPhone/iPad app by Futoshi Niiho.)

- Source: https://appshunter.io/ios/app/simple-calculatoreasy-and-cool/id1559357450 (this page in markdown: same URL + `.md`)
- Developer: [Futoshi Niiho](https://appshunter.io/developer/1545504639)
- Category: Productivity, Utilities
- Price: Free
- Rating: 4.40/5 from 18 App Store ratings · 30 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 33 MB
- Languages: American English, Japanese
- Released: 2021-03-20
- Data updated: 2026-08-23
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/simple-calculatoreasy-and-cool/id1559357450/reviews.md

## What is Simple Calculator・Easy & Cool?

○ For people like this

・Person who want to use a calculator with no extra items
・Person who just want to use the calculator functions simply
・Person who want to use a calculator app that is simple but also easy to use

○ Simple and beautiful design

It is designed to be a simple and easy-to-use calculator.
It has become such a sophisticated design that "pull" rather than "add" the function.
It is an application that embodies "simple is best".

○ Easy to use

Thanks to its simple design and no extra features, you can use the app intuitively.
You can calculate in a fun and stress-free manner.

## Key features

- Simple and easy-to-use interface
- No extra or unnecessary features
- Intuitive operation
- Clean and sophisticated design
- Stress-free calculation experience

## Recent user reviews (10 of 30)

All indexed reviews: https://appshunter.io/ios/app/simple-calculatoreasy-and-cool/id1559357450/reviews.md

### 3/5 — 履歴が邪魔

*2026-01-25*

機種変する前に使ってた電卓がシンプルで使いやすくて似たようなのがないか探してたらこちらを見つけて、シンプルでいいなぁと思ったのですが、使用した履歴が上に残って消えないのがすごく不可で気になり、混乱してしまう……この履歴なんとかならないのかな……履歴があって助かるって人もいるかもしれないけど、設定で履歴を残す残さないを選択できたらいいのにな。と思う。要らない人には履歴要らない……
そこだけ改善されれば使いやすく最高！

### 4/5 — 0から打てるようにして欲しい

*2025-11-09*

1以下の小数が打てないので打てるようにして欲しいです

### 5/5 — Thoughtful and seamless design🥇

*2025-06-07, version v1.0.2*

It has the quality of life features that the default calculator app lacks whilst being clean and fast.⚡️

The other calculator apps are clunky and have ads and purposely throttle the speed so that they can charge an upgrade for what is essentially common software.

### 2/5 — カンマは重要

*2025-03-30*

シンプルでいいのですが、カンマ表記がないので非常に見にくいです。

### 4/5 — シンプルで使いやすい‼️

*2025-01-14*

シンプルで広告も無くていいけど、時々ミスがあるところですかね...（）がある所は便利でした👍🏻✨︎´-

### 5/5 — Beautiful

*2025-01-04, version v1.0.2*

Simple, straightforward and beautiful. Thank you!

### 1/5 — 履歴が邪魔

*2024-11-21*

履歴を残せるとあるが履歴を消せずにずっと残るのが難点。

### 1/5 — Difficult

*2024-10-24*

Labor intensive to navigate, save and delete transactions. No good. It’s free.

### 5/5 — 太くて硬い…♡

*2024-09-14*

旦那のより硬くてギモヂィィィ♡♡

### 5/5 — 本当にシンプル

*2024-08-16*

今まで使っていたアプリが仕様変更で使いにくくなったためこちらを使い始めました
()の計算機が出来るのがいいですね！

## Frequently asked questions about Simple Calculator・Easy & Cool

### What does this calculator app do?

This app provides a straightforward and intuitive calculator experience. It focuses on essential calculation functions without any extra or unnecessary features, making it easy to use for basic arithmetic.

### What are the key features of this calculator app?

The key features include a simple and beautiful design, an easy-to-use interface, and intuitive operation. It prioritizes a stress-free calculation experience by removing any superfluous functions.

### Is this calculator app free to use?

Yes, the app is free to use. It is supported by advertisements, which are displayed within the application.

### Who is this calculator app designed for?

This app is designed for individuals who want a calculator with no extra items, those who simply want to use calculator functions simply, and users looking for an app that is both simple and easy to use.

## Version history (last 4 releases)

### 1.0.4 — 2026-01-16

What’s New
・Fixed an issue where some calculation results were not displayed correctly.

Thank you to everyone who reported this issue via the contact form.

### 1.0.3 — 2026-01-08

What's news:
・ Fixed an issue where the app wouldn’t launch for some users.

### v1.0.2 — 2021-04-08

Hello, I'm a developer.
This time I've included an introduction to other simple apps.
You can see them from the drawer, if you're inclined!

### 1.0 — 2021-03-21

No release notes.

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## More apps by Futoshi Niiho

- [Simple Money Manager App](https://appshunter.io/ios/app/simple-money-manager-app/id1545505204)
- [Simple ToDo List & Tasks](https://appshunter.io/ios/app/simple-todo-list-and-tasks/id1555137308)
- [Simple Timetable・Simple & Cool](https://appshunter.io/ios/app/simple-timetablesimple-and-cool/id1555421780)
- [Simple Calendar・Schedule app](https://appshunter.io/ios/app/simple-calendarschedule-app/id1558989799)
- [Simple Diary, Journal, Notes](https://appshunter.io/ios/app/simple-diary-journal-notes/id1564645368)

All apps by Futoshi Niiho: https://appshunter.io/developer/1545504639

## Related topics

[futoshi niiho](https://appshunter.io/ios/topics/futoshi-niiho)

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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 2026-08-23.*