# Calculator Knight — Fighting Calculator

> Fighting Calculator (iPhone/iPad app by Hiroki Ishimori.)

- Source: https://appshunter.io/ios/app/calculator-knight/id1596339884 (this page in markdown: same URL + `.md`)
- Developer: [Hiroki Ishimori](https://appshunter.io/developer/535476674)
- Category: Productivity, Games, Puzzle, Role Playing
- Price: Free
- Age rating: 12+
- Requires: iOS 12.3 · 75 MB
- Languages: English, Japanese
- Released: 2022-01-06
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/calculator-knight/id1596339884/reviews.md

## What is Calculator Knight?

This is no ordinary calculator! Fight a hot calculation battle!

This calculator has sophisticated calculation functions.
In addition to the basic "four arithmetic operations," you can also perform calculations such as "parentheses," "square roots," "trigonometric functions," and "logarithmic functions," and you can check the formulas you've entered.

But the most unique features are the "characters" and "battles"!

Characters are your partners. Your characters are your partners, and they grow stronger with you as you train your computational skills!

Battles are fights between characters. Battle is a battle between characters, where you have to type quickly and accurately for the formula.
The faster you are, the more powerful your attack will be on your opponent!
However, if you make calculation mistakes, you won't be able to demonstrate your power well.

And as you repeatedly level up, your character will evolve!
The evolution depends on the calculations you've done up to that point. The evolution depends on the calculations you've done so far, so you'll have to wait and see what kind of character you'll evolve into!

You can even play against other nearby smartphones via Bluetooth communication!
Serious competition with the characters you've raised!

Enjoy "Calculator Knight", which is not just a regular calculator!


## Version history (last 2 releases)

### 1.0.8 — 2022-01-08

Fixed battle direction.

### 1.0 — 2022-01-07

No release notes.

## More apps by Hiroki Ishimori

- [PekoShoo](https://appshunter.io/ios/app/pekoshoo/id1527790378)

All apps by Hiroki Ishimori: https://appshunter.io/developer/535476674

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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 2026-05-17.*