Add math expressions to your documents just by drawing it. MathKey converts your handwriting to LaTeX, MathML or images.

● Write the math expression with your finger or Apple Pencil.
● MathKey will convert your handwriting to :
- LaTeX/MathML expression for Pages, Numbers, Word and any LaTeX/MathML compatible app.
- image for any other app that is compatible with images.
● Remote Keyboard : connect MathKey to your computer via our website and paste generated content right on your computer !
● Pick any color for both LaTeX, MathML and image output. You can save up to 20 colors.
● When converting to an image, paste it from the pasteboard or, on an iPad, drag-and-drop it.
● MathKey is powered by MyScript © Interactive Ink state-of-the-art technology.
● Dark & Light themes.

Important :
- An Internet connectivity is mandatory.
- Quotas may be imposed in case of abusive use.
- Although MyScript © Interactive Ink technology is very reliable, results are not guaranteed.
- Apple Pencil works only with compatible iPad.
- MathKey is a keyboard.

What’s New

Version 1.3.6

- Required to use Remote Keyboard

● Version 1.3 ●
- New grid background
- Dark mode support
- Supports 2nd generation Apple Pencil double-tap feature : you can easily switch between the pen and the eraser or display the color picker.
- Supports new iPad Pro 11 inch display.
- Pencil Lock : automatically disable finger input while writing with an Apple Pencil.
- MathML support : choose between LaTeX and MathML in the app's settings.
- Better support of WolframAlpha® with an option removing spaces.
- New installation tutorial.

Ratings and Reviews

4.0 out of 5
215 Ratings

215 Ratings

gg6942 ,

amazing LaTeX renderer

The ability of Mathkey to render LaTeX expressions is excellent. I use it exclusively to generate complicated expressions on my iPad, with delivery to my Mac via the Mathkey webpage (i don’t typeset on iOS devices). In this mode, full keyboard access is not needed, in fact no keyboard is needed at all. I now agree with the author that full keyboard access *is* safe, as long as you don't typeset your credit card info in LaTeX, it has no access to what you type with the other keyboards (of course, since the rendering is done server side, the information is disclosed no matter what, but my research is not classified).

Developer Response ,

I think you already read my reply in the other review about Full Access. You know how Apple cares about privacy. Do you think that they would let developers access what you type or have typed with other Keyboards ?

In other words:
The only interaction MathKey can do with iOS is to say : « insert this text at the cursor position » (it can even move the cursor) and « delete the last character ». MathKey is totally blind : it can’t see what it has deleted or what is around it has inserted.

So if you don’t use MathKey to write sensitive information, we absolutely have zero way to access it.

We used to have an offline conversion engine in the first version but many users reported that it kept crashing. Indeed, MyScript’s engine uses more RAM than iOS allocates to Keyboards so it just kills the keyboard. It’s a shame because newest devices are fully capable of providing more RAM to Keyboards... So we quickly moved to online conversion because it was the most reliable solution. And in order to let MathKey access the conversion server, it need to be granted the Full Access ability. Believe me, if we had the choice, MathKey wouldn’t ask for this option.

I really understand your concerns but you really should trust this app. That is just the way Keyboards work : the only things with they can read is what you type with it.

If you have some basis in development, I invite you to read the third-party Keyboards API docs: there isn’t any method allowing you to read the document.

If you need more details, please email me at


ArockPhoto ,

Help Please

I have been using MathKey Keyboard app on my iPad Pro to insert math equations when I am using the PDF Expert App.
In PDF Expert I would click on the insert "text" button which would bring up the iPad's default keyboard.
Next I switch over to MathKey App's Keyboard
Select the "Image" insert option
Hand write a math equation and click "copy"
Usually at this point it would bring up prompts "Converting" then "Generating" and then display an image of the equation i had written in the bottom right hand corner, which I could copy or drag and drop into PDF Expert.

However, recently after clicking "Copy" it will give me the "Converting" then "Generating" prompts and then tell me "Check Your Internet Connection"

I have tried multiple different troubleshooting attempts, checking internet connection, making sure App keyboard has Full Access, deleted the App and reinstalled it.
I finally downloaded MathKey App on a second iPad connected to the same network and used it exactly as described above and it worked.

Could someone please help me solve this issue. I have emailed the App developers but haven't gotten a responce. I had been using this App successfully for several months and cant figure out what has changed so that it doesnt work any more on my iPad, but works on a different iPad.

Appreciate any help!
Thank You!

Prior to this issue would give 5 star review. If you could help me solve this issue I would be happy to change my review :)

Developer Response ,

There was an issue with the image generation server.
I am sorry for the inconvenience and would love if you could update your review.


Okl1234 ,

Makes equation writing so much more accessible

I have been using Latex for a long time, but lately only sporadically. That means I have to look things up a lot to find the proper commands. This app makes writing equations so much easier. No more wasting time to find what to type in Latex to generate the proper result.

The app’s writing recognition is very good, but not infallible. However, since the app’s keyboard allows me to individually delete parts of the input and redraw them in a more readable manner, this is not a big issue in practice.

The part that was a real nice surprise was the app’s ability to recognize multi line equations. Most others I have tried turn that into a fraction of some sort.

The remote keyboard connection is a welcome addition. While I think I could manage with copy and paste between iPad and Mac, having the ability to draw equations in full screen mode on my iPad and have the results appear on the desktop makes it really easy to work with, especially since that’s where I usually need my equations.

A really great app that makes good use of the iPad combined with the pencil

Developer Response ,

Thank you for your amazing review ! I’m glad that MathKey helps you be more productive.

Feel free to email me at if you have any suggestions.


App Privacy

The developer, Nicolas Dalbard, 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
  • Usage Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

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


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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