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By Tydlig Software AB

This app is only available on the App Store for iOS devices.


Calculators have changed very little since the 1970s - while phones from that era look ancient. Why should calculators cling to a 40 year old design with a wall of buttons and one row for results in the age of retina displays? We deserve something better. Tydlig brings the calculator to the next level for iPhone & iPad with innovations like freeform canvas, responsive results and linked numbers.

Tydlig is perfect for calculating everyday things like tips and discounts, showing the entire history and allowing you to change any number with instant updates. For deeper calculations real-time graphing is an excellent way to explore and visualize things like bank interest rates and trigonometric functions.


* Responsive results: Edit any number on the canvas and see all results update automatically. Let your calculator work for you, not the other way around.

* Linked numbers: With a result selected, press any operation to create a linked number below. Responsive results will cascade down these links.

* All history is stored on an infinite scrolling canvas. Drag numbers around and reuse them as you wish.

* Annotate any number with an attached text label, like a freestyle spreadsheet.

* Real-time graphing: Link numbers to a graph and any change to the expression will instantly update the graph. Perfect when trying to explore how functions work and behave.

* Use the Slider to tweak any number and see results and graphs update in real-time. Combined with the graph it is an excellent way to visualize and teach math. Tap the slider to toggle between discrete and continuous modes.

* Share the entire canvas by printing, or exporting as a high quality PDF. You can also copy calculations as text, or save the visible area as an image which can be used in other applications like Pages or Word.

* Undo support.

* Supports external Bluetooth keyboards for really quick digit and basic operations entry (+, -, *, /).

* Tydlig works completely offline, no need to be connected to the internet.

* Lots of power under the hood with a lightning fast calculation engine, over 20 mathematical functions and scientific notation formatting options.

What's New in Version 1.6

* Support for iPhone X
* Dark Theme

If you like Tydlig, please take the time to give us a nice review: it really helps.


iPhone Screenshot 1
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iPad Screenshot 1
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Customer Reviews

Unique, Enjoyable Calculator With Good Export

Unique approach to a calculator - dare I say Brilliant?
An ongoing record is kept as you work.
Basic operations are easy to learn and remember.
Calculations can be annotated with text.
Support for graphing.
Export calculations as plain text via Copy - works with single number, single line, or entire canvas).
Exports to high quality PDF.
Split screen support on iOS 11 for iPads.

No way to import calculations from other apps (using say cut-and-paste).
I find Graphing somewhat unintuitive - but maybe that's just my own issue.

Support for fractions would be very convenient for work workers, and those in construction trades.
All calculations are performed a single session - restored each time to restart the app.
However, it might be handy to have support for creating, saving and restoring multiple sessions.

Thanks to developer for this latest iOS 11 update!

The best calculator app ever!

Update: Just updated for iPhone X. I am happy now. Thanks!

I use this calculator everyday, even on my days off. It's so simple and clean that it makes doing calculations a breeze. It allows you to show your work just like our teachers told us we should.

I would love to see an update for pages or worksheets. I say this because I have a formula that I use everyday and change everyday so anything new has to go below that. It would be nice to work on a clean page. You could even do a 3D Touch option for a tip calculator formula or maybe even user customizable!

I would pay for the features mentioned above but if I'm being honest I would only pay $1.99.

math how i think

great calculator. over the past 5 years, Tydlig, and two others have never been removed from my phones.

one huge flaw though, no way to save a sheet of calculation. you can export them, but not start a new one and come back to it. i can’t imagine while it hasn’t gotten in there all of these years.

regardless, 5 stars

View in iTunes
This app is designed for both iPhone and iPad
  • $1.99
  • Category: Utilities
  • Updated:
  • Version: 1.6
  • Size: 13.3 MB
  • Languages: English, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
  • Seller:

Compatibility: Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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