Tydlig - Calculator Reimagined for iPad & iPhone

About Tydlig

Tydlig is a new kind of calculator for iPad and iPhone that sheds the legacy limitations of old devices, for a truly modern experience.

Why do most iOS calculators look like someone taped an old plastic calculator to the screen? How come calculator apps still have buttons like MC/MR/M+/M- when there is enough room on modern devices to store all numbers you could ever think of?

Tydlig starts with a clean sheet, then by only adding interface components that truly makes sense on iPhone and iPad it lets you focus on what really matters: your calculations.

Responsive Results

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

Linked Numbers

With a result selected, press any operation to make a linked number on the line below. You can also drag a result to create a link. Responsive results will cascade down these links.

Powerful Graphing

Drag results onto a graph to visualize the expression. Use the Slider to instantly adjust the x-value and inspect different points on the graph, perfect when trying to learn how different functions behave.

Freeform Canvas

Drag numbers and expressions around, arrange them as they make sense to you, the canvas will expand indefinitely.

Calculation Engine

Lots of power under the hood with lightning fast calculation engine and over 20 mathematical functions available.

External Keyboard

Tydlig supports external Bluetooth keyboards for really quick number and basic operations (+, -, *, /) entry.

Absolutely amazing app!!! Just wonderful and so much fun. Very, Very clever and unique way of looking at visualizing calculations.
- B. Brown

This is amazing. I love seeing new pedagogical tools for mathematics showing up. In my opinion, it's one of the biggest hindrances in teaching mathematics today. It looks great as well. Great job :)
- SLGC