Mathematical keyboard C Android

Mathematical keyboard C

This is a soft keyboard that is convenient for writing math expressions.

Features & Capabilities

This is a soft keyboard that is convenient for writing math problems, expressions, etc.
Numbers, symbols, all alphabets and Greek letters can be entered without conversion.
You can enter digits from 0 to 9 and all alphabets, Greek letters "α, β, θ, μ, π, σ, ω" and mathematical symbols "∫∬!?√#|%$\°'"^:;∠⊥△∴∞&+±-~*×/÷=≠≒≡<≦>≧({[)}].,".
If you press the key of the symbol continuously, it switches to a different symbol.
If you press the key of the alphabet and Greek letters continuously, it switches from lowercase letters to uppercase letters.



Enabling Keyboards

01
Go to Settings > System > Languages & input > and tap Virtual keyboard in the Keyboard & inputs section.

02
You'll see a list of each keyboard you've installed.
Tap "Manage keyboards".

03
Toggle on the new keyboard.
You might see a warning that this input method may collect the text you type including personal information.
But this app does not collect any input content.
This is not a warning specific to this application, it will always be displayed if you select a character input application other than the keyboard that is standard on the device.
If you're satisfied with the explanation, tap OK.


Note: Instructions will vary depending on your Android OS.



Switching Keyboards

01
Launch the app you want to type in.

02
Tap to bring up the keyboard.

03
Tap the keyboard icon on the bottom right.
(On some devices this icon isn't present, in that case pull down the notification bar when a keyboard is active.)

04
Choose the keyboard from the list that pops up.

User Growth & Download Statistics

App
By:
hosinoatusi
Downloads:
488
Version:
4.0 Last updated: 2025-09-05
Version code:
4
Creation date:
2018-04-04
Publisher country:
JP JP
Permissions:
  • com.android.vending.CHECK_LICENSE Safe
Size:
5.55MB
Price:
0.99
Email:
ho*****@gmail.com
URLs:
Privacy policy
Full description:
See detailed description
Source:
Google Play Store
Data ingested on:
2026-06-09
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.
Developed by:
hosinoatusi
Google Play Store
https://play.google.com/store/apps/details?id=com.fc2.web.etuc.keyboard11
Email:
ho*****@gmail.com

User Reviews

This keyboard is not great at all. I don't want to sound negative, I just want others to know what they're getting into. I figured this keyboard could do vectors, and dot notation for time derivatives. It has very basic stuff. I actually downloaded another app for free that had way more options and symbols than this app, and it was free. This is way to basic. And if you get it I don't think you can toggle back and forth between your regular keyboard and this math keyboard. Letter are notqwerty
by Ar*****, 2020-11-03

It specializes only in writing mathematical formulas. Therefore, even if I enter the alphabet, no word candidates will appear. That's fine. I can concentrate only on mathematical formulas.
by at*****, 2020-07-31
View all user reviews ›

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