# Kalkyl — Just a really good calculator

> A versatile and user-friendly calculator with advanced features for quick calculations and collaboration. (iPhone/iPad app by nordic io.)

- Source: https://appshunter.io/ios/app/kalkyl/id519933025 (this page in markdown: same URL + `.md`)
- Developer: [nordic io](https://appshunter.io/developer/519933028)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 4.50/5 from 714 App Store ratings · 75 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 4 MB
- Languages: American English, French (France), German (Germany), Hindi, Italian, Japanese, Korean, Brazilian Portuguese, Russian, Chinese (Simplified, China) and 1 more
- Released: 2012-04-23
- Data updated: 2026-08-20
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/kalkyl/id519933025/reviews.md

## What is Kalkyl?

Kalkyl is just a really good calculator.

• Optimized for quick calculations.
• Collaborate on documents.
• Simple and intuitive design.
• Haptic feedback (on supported devices).
• Undo and Redo support (shake to Undo).
• Keyboard trackpad mode using 3D Touch, or Haptic Touch (on supported devices), or two fingers on iPad.
• Pointer interactions on iPad.
• Basic graphing.
• Properly localized number formatting.
• App-wide dynamic type support.
• Accessible.

Terms of Use:
https://kalkyl.io/terms.html

## Key features

- Optimized for quick calculations
- Collaborate on documents
- Intuitive design with haptic feedback
- Keyboard trackpad and pointer interactions
- Basic graphing capabilities
- Localized number formatting
- Undo and Redo support

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Kalkyl Pro | $4.99 | per year |


## What do users think of Kalkyl?

Overall sentiment: positive

**Pros**

- 🚀 Efficient and fast
- 👍 Intuitive and simple interface
- 🔒 No ads or in-app purchases
- 🎨 Beautiful design
- 🔢 Useful graphing and calculation features

**Cons**

- 🐛 Occasional crashes or bugs
- 💡 Lack of clear/reset button
- 💡 Missing history or memory functions
- 💡 Difficulty controlling graphing view

**Commonly reported bugs**

- Crashes on launch for some users
- Graphing issues with certain equations
- Incorrect results for some calculations

**Most requested features**

- Add a clear/reset button
- Implement calculation history and memory functions
- Improve graphing controls and zooming
- Add support for more mathematical functions (e.g. factorials, fractions)
- Provide an option for independent dark mode

## Recent user reviews (10 of 75)

All indexed reviews: https://appshunter.io/ios/app/kalkyl/id519933025/reviews.md

### 2/5 — Missing history

*2025-09-27, version 3.0.6*

This is one of the better calculator that I have used so far. Can you add uneditable history? That’s the only thing missing in this app.

### 5/5 — Great app!

*2025-06-07, version 3.0.5*

This app has removed any need for me to ever use the default calculator app. It works so much better and is so much more useful. Must have app

### 5/5 — Yes

*2025-06-01, version 3.0.5*

Portraits good

### 5/5 — Perfect

*2024-08-09, version 3.0.3*

I very rarely leave a written review but this Calculator has single handendly improved the quality of my life out of any app on my phone. It is SO useful to math out stuff on the go as well as having a graphing calculator built in. Thank you so much for making this <3

### 1/5 — Calculating Electric Utility Costs

*2022-09-27, version 3.0*

Very convenient and easy to calculate $ / KWh etc. for a solar electric project !!! Thanks !
Also for utility gas bill calculations.
Great calculator !!!  Thanks !!!

### 4/5 — Factorial?

*2022-09-09, version 2.9.2*

Can it do factorials?

### 3/5 — Weird

*2022-04-26, version 2.9*

Why is everything shoved on either side of the screen? And where is the clear all button? And why does it display the calculation changing as you type. Weird…

### 3/5 — Why isn’t there an equal sign?

*2021-09-09, version 2.9*

Why isn’t there an equal sign?

### 3/5 — graph control difficulties

*2021-03-10, version 2.9*

it is very hard to control the veiw of the graphical interface with very small solution like −(x−2)^2+4. i would consider getting pro if this graphical issue wasnt frustrating. would also be a huge avantage to be allowed to long press numbers to easely change the last digit to the selected power or fractionnal form

Answer:
That pinch that you say if very frustrating i would send you a screen record if i could. A soon as the data gets very dense it is very hard to zoom in i have to let go both my fingers at the same time to even get some hope of holding the way i zoomed in.

### 2/5 — Subscribe for a.....  simple graph calculator?

*2020-09-14, version 2.9*

Pro: 

App is ok, 
so I will give credit where credit is due. I use it maybe... once a month when a basic calculation requires more than talking to siri.  It is better than the native ios calculator. I am too lazy to find another app to quench my software payment grievances related to this app. Yes, this review is mainly a rant about the subscription service.
But before that:  The instant graphing is nice. The are other alternatives like Desmos and Quick Graph + that have more more functionality and graphing ability but the buttons are smaller lol, so I guess in reality that is the selling point here.

The Rant:
I just wanted to let the developer know that I do appreciate the vibe of the app but I perceive the subscription service with a sense of disgust.  I understand that subscriptions make predicting your income easier but on the flip side it makes it more difficult for the customer who now has to keep track of the subscription and might forget since it is just a calculator (which is probably the real intended purpose). 
I highly doubt the upkeep argument.  This is a basic calculator with some graphing ability, not a new content factory like media, netflix.  The customer might also have their history erased if they don’t pay.  Nice

Yeah, and it is true I have not subscribed to the calculator so some of this is speculation and might not be 100% a c c u r a t e... but the important part where I am trying to help here is that this is my perception of the app, which in reality, is more important than the truth because I am the potential customer.

You can take this with a grain of salt. I imagine you are also pretty lazy like me and probably just like “Awwwww, cute, sorry but I am too lazy to even think about this anymore” Honestly, I enjoyed reviewing this because it is just so insane to me.

The real thing that probably motivated my relatively low rating is just my hate for subscription payment models in general.  Moleskin apps immediately come to mind...  But even cars now, BMW is making people subscribe for heated seats...

So yeah please, money is nice, I would pay if it was one time but this just ruins the vibe

just say it out-loud to your friends:
“I subscribe to a calculator”
You wouldn’t pay for this either because you would be embarrassed

## Frequently asked questions about Kalkyl

### What makes Kalkyl a 'really good' calculator?

Kalkyl is praised for its efficient and fast calculations, intuitive and simple interface, and beautiful design. Users appreciate its useful graphing and calculation features, contributing to a positive overall sentiment.

### Does Kalkyl have ads?

No, Kalkyl is ad-free. Users specifically mention 'no ads or in-app purchases' as a pro in reviews, indicating a clean and uninterrupted user experience.

### What are the subscription options for Kalkyl?

Kalkyl offers a 'Kalkyl Pro' subscription for $4.99 per year, which includes a 3-day free trial. This subscription likely unlocks additional features or removes limitations present in the free version.

### What devices is Kalkyl compatible with?

Kalkyl is available on iPhone, iPad, iPod, and Apple's realityOS devices. It supports app-wide dynamic type and is accessible across these platforms.

### How does Kalkyl handle undo and redo?

Kalkyl supports undo and redo functionality. Users can shake their device to undo actions, and it also features a keyboard trackpad mode for precise input on supported devices.

### What graphing features does Kalkyl offer?

Kalkyl provides basic graphing capabilities. While users find the graphing features useful, some reviews mention difficulty controlling the graphing view.

### How frequently is Kalkyl updated?

The latest version of Kalkyl is 3.0.6, last updated on July 18, 2025. This indicates a recent update, suggesting ongoing development and support for the application.

### What is the age rating for Kalkyl?

Kalkyl has an age rating of 4+. This means it is considered suitable for children aged 4 and above, with no mature content.

## Version history (last 5 releases)

### 3.0.6 — 2025-07-18

Kalkyl Pro is still free and available for every one of you!

Fixes a bug in the display (not calculation) of repeated decimals of rationals of a certain rare format.

### 3.0.5 — 2024-08-21

With this release Kalkyl Pro is made free and available for every one of you!

New features include:
• Unit conversions with complex units – from EUR/m² to USD/ft² or m/s to mi/h with up-to-date currencies
• Collaborative Documents – allowing nested and dependent expressions and sharing with friends
• Symbolical Differentiation – when you just can't remember what d/dx of √cos (x²) is
• … last but probably the least: The Light app icon

### 3.0.3 — 2024-02-26

Fixes a rare issue where fractions with special properties could result in repeated decimals being presented with the wrong first or last digit

### 3.0.2 — 2023-09-16

Support for the latest operating systems

### 3.0.1 — 2022-10-03

Bug fixes

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## Related topics

[percento](https://appshunter.io/ios/topics/percento)

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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 2026-08-20.*