Math Editor & Keyboard

2.5
120 reviews
50K+
Downloads
Content rating
Everyone
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About this app

We started writing a simple math editor, then we realized that writing math symbols was boring on Android. We also realized that writing a system keyboard for Android could make us happy, because all the existing ones was not so useful, so we did it. With a pretty system keyboard, we realized that the remaining steps in order to have a fully functional Bluetooth keyboard was not so many. So, here is Zeta Math

Zeta Math will allows you to write some math documents offline on your android phone, you can use its keyboard as your default keyboard and switch it very quickly as you want with a simple shortcut (⌘+K).


if you are tired of typing Unicode symbols like Φ and ζ by filtering a big tables of Unicode symbols or making a lot of shortcut for them, or if you simply want to test a simple way to do it, try this app.

Zeta Math is packaged with its internal documentation whose we recommend you to read.

The Bluetooth keyboard does not require you to install anything on the host to control (may be your desktop) but the host MUST support BLE (Bluetooth Low Energy) and GATT profiles. It has not yet been tested with MacOs because here we love Linux and Windows is easier to find around us.

If you request any symbol to be added to the keyboard , check if it exists in the following doc and send it to us https://github.com/stipub/stixfonts/blob/master/docs/STIXTwoMath-Regular.pdf.

You may have found a bug, we are sure there is at least one. Don't worry, don't get mad, we will be happy to help you.

You can send us a private email at:
--- vouga.dev@gmail.com

Or share with the community in the Google Group created for this app:
--- https://groups.google.com/g/zeta-math
Updated on
Sep 18, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App info and performance and Device or other IDs
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

2.5
112 reviews
Caleb Quay
December 9, 2024
If you click on Bluetooth, it installs another keyboard called Mirrorgo keyboard. Uninstalling the app does not uninstall that Mirrorgo keyboard. It's still listed in Andoird. Need to go to apps and uninstall an app called Connector for it to disappear. Makes me wonder what other apps this app installs secretly to steal your passwords. I miss the app called Engineering Keyboard but it has not been update for a long time.
9 people found this review helpful
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Japhet Okoro
March 17, 2025
Since i installed i am still strugging with typing supescript. It is simply displaying as ^oC instead of te letter o be superscriptes. What am i doing wrong
3 people found this review helpful
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Anaan Henna Nazeer
January 2, 2025
This is a really nice app. I can see the additional symbols by long pressing a key but I am not getting the additional symbols while tapping the options. What to do?
1 person found this review helpful
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