# Euclid - Calculator — Modern calculator

> Modern, efficient, and intuitive calculator with real-time LaTeX visualization and command interpretation. (iPhone/iPad app by Arthur Guiot.)

- Source: https://appshunter.io/ios/app/euclid-calculator/id1532099156 (this page in markdown: same URL + `.md`)
- Developer: [Arthur Guiot](https://appshunter.io/developer/1392983459)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 2.50/5 from 2 App Store ratings · 9 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 21 MB
- Languages: Dutch, English, French, German, Italian, Japanese, Chinese, Spanish
- Released: 2020-09-27
- Data updated: 2026-06-10
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/euclid-calculator/id1532099156/reviews.md

## What is Euclid?

Euclid is a modern calculator application. So far, nothing surprising... except that Euclid was designed to be simpler, more efficient, and above all cooler than other applications of the same caliber. But how? Because Euclid has been redesigned to be different, incorporating remarkable features.

The first thing you'll see when you open Euclid is how simple it is. Only a few buttons, your calculation, and the result. That's it. Everything is grouped around the editor to help you see more clearly. Everything is done to be intuitive for everyone.

Our editor allows you to visualize your calculation in real-time with LaTeX technology. Once again, it's to help you see more clearly!

Then, your calculation is analyzed in real-time by the Euler framework, the brain of Euclid, as it were. This home-made, open-source framework guarantees the efficiency of Euclid, and makes it possible to offer regular updates.

But that's not all, it's also what allows Euclid to offer to interpret Excel-style commands. Most mathematical formulas are supported.

Finally, Euclid has other functionalities, such as unit conversion and the use of variables.

Anyway, Euclid is really cool!

## Key features

- Real-time calculation visualization with LaTeX
- Excel-style command interpretation
- Unit conversion
- Variable usage
- Simple and intuitive interface

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Full Access | $4.99 | one-time |


## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/euclid-calculator/id1532099156/reviews.md

### 2/5 — Unintuitive and uncustomizable

*2024-02-11*

It doesn’t even use the standard calculator layout, causing me to hit comma instead of period constantly. Why is it even there when comma decimals are off?

It took me ages to figure out how to get the result of my calculations, and I’m not sure what I did that caused the answer to begin showing up. I just want a calculator app that works like the default Android one. Bonus points for Speedcrunch/Numbat style features, but entirely unnecessary.

### 4/5 — Decent

*2022-04-01*

Powerful, but there is 1 bug and a UI/UX opportunity. When the display is full, adding new characters does not scroll visually, but logically it did. Thus, one need to move to the left to refresh, even though the new characters are on the right. This is known as happened on Mac but fixed already. 

Overall, the UI could be improved by allowing gestures instead of relying solely on the arrows, and adding landscape support with the additional buttons.

### 5/5 — Review botted?

*2021-12-18*

Using this through my set app subscription and have had none of the issues from previous reviews.

### 1/5 — Requires In-App Purchase

*2021-09-12*

It claims to be a free app but it requires an in-app purchase right out the gate to even work.

### 1/5 — App freezes and crashes constantly

*2021-01-21*

Not really a calculator as it crashes or freezes doing basic calculations. It also freezes entirely trying to open the settings pane. Takes much too long to open. 

Built in calculator on the phone is much better.

### 1/5 — Crashes Before it Even Opens

*2020-12-16*

I think the title of this review pretty much sums it up. This is not an app, it’s an icon that you can put on your phone to click on when you’re feeling bored and want to see it fail to even load a startup page. 

I the developers’ reply to the other review about constant crashing particularly amusing. To paraphrase, “Just because its response to an unexpected scenario (unexpected by the developers, that is, since it clearly wasn’t unexpected by the other reviewers, 100% of whom encountered it during routine use) is to simply crash, does that make it a rubbish app?” Yeah, I think that’s pretty much the definition of a rubbish app. Either get your act together or at least learn how to gracefully accept your mistakes. It’s called being an adult.

### 5/5 — Brilliant app

*2020-11-15*

This app is brilliant. The design is really well thought out and executed - the conversions in particular are brilliant. 

Thanks for making a great app!

### 1/5 — Just immediately crashed. Also, no help or other information

*2020-10-17*

It just fires up with its UI. There’s no Help or any other way that I can see to learn what this can *do*.

First thing I did when I started it was type in x = 3y. It offered a graph option. I tapped that and it crashed.

Every time, it does this. This app is rubbish.

**Developer response:** Hello,
I agree with you that a help section might be needed for more advanced functions.

Concerning the graph, the = sign in Euclid tells the app to draw 2 different functions (ex: x=2x will show 2 different lines). Because in the second expression, Euclid couldn't really understand what was happening, it crashed. It's a known bug that I'll try to fix!

I'm sorry that you don't like Euclid. Does that particular issue makes it a rubbish app though?

### 5/5 — Superbe calculatrice ! 👏

*2020-10-07*

Très simple d’utilisation, l’application est très esthétique. 

Elle est aussi personnalisable au niveau des couleurs et l’outil de conversion est très utile. 

Bon point également pour l’intégration des graphiques, la fonction de partage est aussi très pratique.

## Frequently asked questions about Euclid

### What makes Euclid different from other calculators?

Euclid is designed to be simpler, more efficient, and cooler than other calculators. It features a clean interface, real-time LaTeX visualization, and the ability to interpret Excel-style commands.

### Does Euclid support offline use?

The provided information does not specify offline functionality. However, its core features like calculation and unit conversion are typically available offline.

### What devices is Euclid available on?

Euclid is available on iPhone, iPad, and iPod devices.

### How often is Euclid updated?

Euclid was last updated on October 1, 2022, with version 1.2.2. The open-source Euler framework enables regular updates.

### What is the age rating for Euclid?

Euclid has an age rating of 4+, making it suitable for younger users as well as adults.

### Does Euclid have ads?

No, Euclid does not contain advertisements.

### What are the in-app purchases for Euclid?

The app is free with in-app purchases, though the specific details of these purchases are not provided in the description.

### How does Euclid's real-time visualization work?

Euclid uses LaTeX technology to display your calculations in real-time, helping you visualize the mathematical expressions more clearly as you input them.

## Version history (last 5 releases)

### 1.2.2 — 2022-10-01

- Fixed: Currency converter
- Added: Constants for variables
+ Various bug fixes

### 1.2.1 — 2022-05-18

- Added a comma option for decimal numbers.
- Removed slider in parameter view for better performance and fluidity

### 1.1.1 — 2021-08-18

Bug fixes and minor changes, but mostly:
- Functions not working properly
- Settings panel crashing

### 1.1.0 — 2021-07-27

Bug fixes and minor changes

### 1.0.9 — 2021-04-07

This patch includes:
- A fix for the crash when opening the conversion panel
- A new system for setting the variables

## Apps similar to Euclid

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Calculator +](https://appshunter.io/ios/app/calculator-plus/id351815470) | 4.6 (9,595) | Free | Utilities |
| [Calculi: Scientific Calculator](https://appshunter.io/ios/app/calculi-scientific-calculator/id452182503) | 4.4 (374) | Free | Utilities |
| [Calculator +ㅤ](https://appshunter.io/ios/app/calculator-plus/id1597933199) | 4.6 (4,123) | Free | Utilities |
| [Haseba Calculator](https://appshunter.io/ios/app/haseba-calculator/id1121281655) | 4.6 (3,795) | Free | Utilities |
| [Calculator₊](https://appshunter.io/ios/app/calculator/id398129933) | 4.7 (1,719,429) | Free | Utilities |
| [Calculator for iPad₊](https://appshunter.io/ios/app/calculator-for-ipad/id1174240047) | 4.5 (126,044) | Free | Utilities |

## More apps by Arthur Guiot

- [CrypTool](https://appshunter.io/ios/app/cryptool/id1392983460)
- [StudIO - Code](https://appshunter.io/ios/app/studio-code/id1452038669)

All apps by Arthur Guiot: https://appshunter.io/developer/1392983459

---

*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 2026-06-10.*