Euclid - Calculator 4+

Modern calculator

Arthur Guiot

    • 2.3 • 9 Ratings
    • Free
    • Offers In-App Purchases



The modern calculator for iOS

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!

What’s New

Version 1.2.1

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

Ratings and Reviews

2.3 out of 5
9 Ratings

9 Ratings

AndreHarbo ,

Crashes Before it Even Opens

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.

Wanted a reference! ,

Just immediately crashed. Also, no help or other information

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 ,

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?

jsc190 ,


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.

In-App Purchases

Full Access
Access to all premium features of Euclid

App Privacy

The developer, Arthur Guiot, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Identifiers

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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