# Ningen Calc X — The Slowest Calculator Ever

> A calculator where numbers are formed by walking people, offering a slow and humorous experience. (iPhone/iPad app by Amaitorte.)

- Source: https://appshunter.io/ios/app/ningen-calc-x/id344970158 (this page in markdown: same URL + `.md`)
- Developer: [Amaitorte](https://appshunter.io/developer/342443053)
- Category: Entertainment, Utilities
- Price: $1.99
- Rating: 5.00/5 from 1 App Store ratings · 54 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.5 · 38 MB
- Languages: American English, German (Germany), Japanese, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2009-12-18
- Data updated: 2026-09-07
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/ningen-calc-x/id344970158/reviews.md

## What is Ningen Calc X?

For those who can no longer be satisfied with ordinary calculator apps.

The age of numbers made from people has arrived!
Ningen Calc X — the calculator app where numbers literally walk onto the screen.

Have you ever thought this while using a normal calculator?
- The results appear way too fast
- You’re tired of cold, lifeless digital numbers
- Store-bought calculators just aren’t cute

Ningen Calc X solves all of these problems instantly!

Press a button and a mysterious crowd of people comes marching in, forming human shapes to display the numbers you entered.
It’s a wonderfully ridiculous calculator experience.

Since it takes time for the human numerals to assemble, the result appears absurdly slowly for a calculator. Honestly, doing the math in your head would probably be faster!

Perfect when you want to:
- Kill some time
- Pretend you're calculating while buying time
- Smash the time-efficiency obsession of modern life

Ningen Calc X — highly recommended for anyone who wants a calculator experience like no other.

----------------

[Extra Features in the Full Version]
This app is the full version of Ningen Calc X. Compared to Ningen Calc X Lite, it offers the following:
- No ads — safe and distraction-free, even for children
- Choose from over a dozen unique stages (backgrounds and colour themes)
- A convenient backspace key to easily correct input mistakes
- Two button style options, with the ability to hide buttons entirely
- Supports landscape mode, iPad, and Mac — including keyboard input

## Key features

- Numbers formed by walking people
- Slow calculation display
- Humorous and unique experience
- Ad-free and distraction-free
- Multiple stages and themes
- Backspace key for corrections
- Keyboard input support

## Recent user reviews (10 of 54)

All indexed reviews: https://appshunter.io/ios/app/ningen-calc-x/id344970158/reviews.md

### 5/5 — 永遠に残したいアプリ

*2026-02-14, version 3.0.1*

冗談抜きで、子どもが私の通院に付き添っている時など退屈な時間を潰すのに一番お世話になっているアプリです。
動画でもソシャゲでもなく、このアプリに一番助けられています。

iOSのアップデートと共に設定が動かなくなって背景を変えられなくなり、でも仕方ないねと言い聞かせていたらまさかこんなタイミングでアップデートされるとは！しかも背景も増えている！
子どもは「（人間たちが）雪の色になった！」と背景に応じて色が変わることに大喜び。
忍者がもう少し高い確率で出たら嬉しいけれど、このレア度だからこそ楽しみがあるのかも。
（追記：…と思っていたら、フィーバー忍者タイムに遭遇し子どもは大喜び！また出会えないかな〜）
とにかく作者さんがまだこのアプリを動かす意思があることに感謝です。
子どもが自分でスマホを持つまではずっと残っていて欲しいアプリです。

### 5/5 — 癒し系パフォーマンス電卓

*2026-02-08, version 2.2.0*

この電卓を、「計算が遅い」とか「数字が読み難い」とか、真顔でそれを語ってしまうと逆に周りから「頭、大丈夫？」と思われます。
これは飲み会などで割り勘計算とかの場面で、女性の前で颯爽と取り出し、衆目の中でドヤ顔で使うモノです。
あくまで計算ではなく計算パフォーマンス電卓なのです。
間違えても仕事や学術計算などガチな状況で使うものではありません。購入の際はご注意ください。

### 5/5 — 健気な連中だよ

*2021-08-13, version 2.2.0*

スキップ途中で←押すと…
ごめんよw

### 5/5 — 癒しです

*2019-12-17, version 2.1.1*

はっきり言って実用性はありません。
ただただ癒される電卓です。
オススメです。

### 5/5 — やや絵寄りで、数字と認識しづらい。

*2018-04-15, version 2.1.1*

とくに除算記号(÷)と加算記号(+)の区別が分かりづらい。イコールもちょっと分かりづらい、かな…。早く答えが知りたい時のダッシュモードとか欲しい。

### 5/5 — チョーおすすめ☆*:.｡. o(≧▽≦)o .｡.:*☆

*2017-04-13, version 2.1.1*

今回のアップデートでの対応の早さ！！
最高です ψ(｀∇´)ψ
すごい気に入っていたので…使えなくなったら
悲しっす (＞＜)
たまに黒子が出て来るのが楽しみです ^^;

### 5/5 — さいこーに

*2015-06-21, version 2.1.0*

かわいいです。ワリカンの時なんかに出すと100パーセントウケます。

### 2/5 — バグがありました

*2015-01-14, version 2.0.2*

非常にかわいくて、いつも使わせていただいておりますが、バグを見つけたのでご報告致します。
4.2×277×kで、調べた限りではk=100,101,200,25,50のときに小数第11位に1が出現します(k=100の場合)。
修正お願いします。

### 5/5 — なんか申し訳なくなる可愛さ

*2014-09-27, version 2.0.2*

計算するのが悪く思えてくるほど
がんばってくれます！可愛いです

### 5/5 — 買っちゃった。

*2014-08-08, version 2.0.2*

関数計算機探してたのになー。今、ストアでイチオシのアプリがセールとか無料だからアプリ探してたらこれ買っちゃった。
なんだコレ…静かに笑える。

## Frequently asked questions about Ningen Calc X

### What is Ningen Calc X?

Ningen Calc X is a unique calculator app where numbers are formed by animated people walking onto the screen. It offers a deliberately slow and humorous calculation experience, contrasting with typical fast digital displays.

### Does Ningen Calc X have ads?

No, Ningen Calc X is ad-free. This provides a safe and distraction-free environment, making it suitable even for children.

### How much does Ningen Calc X cost?

Ningen Calc X is a paid application, available for $1.99. This one-time purchase grants access to the full version of the app.

### What devices does Ningen Calc X support?

Ningen Calc X supports a range of Apple devices, including iPhone, iPad, and Mac. It also features keyboard input support for Mac users.

### What makes Ningen Calc X different from other calculators?

Its primary difference is its visual presentation; numbers are formed by walking people, creating a slow and entertaining experience. It's designed to be the opposite of a fast, efficient calculator.

### Can I correct mistakes in Ningen Calc X?

Yes, the full version of Ningen Calc X includes a convenient backspace key. This allows users to easily correct input mistakes without restarting the entire calculation.

### What age rating does Ningen Calc X have?

Ningen Calc X has an age rating of 4+. The app is designed to be safe and distraction-free, even for younger users.

### How often is Ningen Calc X updated?

The latest version, 3.1.2, was last updated on March 6, 2026. This indicates a history of updates to maintain and improve the application.

## Version history (last 5 releases)

### 3.1.2 — 2026-03-06

- Minor bug fixes

### 3.1.0 — 2026-03-02

- Improved startup speed
- Supports cursor key input from external keyboards and external gamepads

### 3.0.1 — 2026-02-13

- Minor bug fixes

### 3.0 — 2026-02-10

- Added dark mode support for certain stages
- Character appearances now change depending on the stage
- Added support for external keyboard input
- Added the ability to select font size
- Made numerous other minor fixes

### 2.2.0 — 2020-05-13

- Supporting iPhone X/XS/XR/11 Screens
- Supporting iPad Slide Over and Split View

## Apps similar to Ningen Calc X

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Simple Mahjong Scoreboard](https://appshunter.io/ios/app/simple-mahjong-scoreboard/id6504602453) | — | Free | Entertainment |
| [Any Number](https://appshunter.io/ios/app/any-number/id1513741446) | — | $9.99 | Entertainment |
| [おっちょこちょい電卓](https://appshunter.io/ios/app/id6740884533) | — | Free | Entertainment |
| [MindImage](https://appshunter.io/ios/app/mindimage/id1598697185) | — | Free | Entertainment |
| [ハナハナカウンター 設定推測機能付き \| 子役カウンター](https://appshunter.io/ios/app/id6444436318) | — | Free | Entertainment |
| [パチスロ小役カウンター メタカン - ぱちんこぱちすろツール](https://appshunter.io/ios/app/id6471044830) | — | Free | Entertainment |

## More apps by Amaitorte

- [Amai Calc](https://appshunter.io/ios/app/amai-calc/id342443050)
- [Amai Calc Lite](https://appshunter.io/ios/app/amai-calc-lite/id1156024464)
- [Nekompass](https://appshunter.io/ios/app/nekompass/id1159510347)
- [Neko Can Dream](https://appshunter.io/ios/app/neko-can-dream/id1537003787)
- [Ningen Calc X Lite](https://appshunter.io/ios/app/ningen-calc-x-lite/id6759345711)

All apps by Amaitorte: https://appshunter.io/developer/342443053

---

*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 2026-09-07.*