Mathematical keyboard D Android

Mathematical keyboard D

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

Features & Capabilities

This is a soft keyboard that is convenient for writing mathematical questions and 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, λ, 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.
The alphabet is a QWERTY array.



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:
3,090 1
Rating:
4.50
(42)
Version:
4.0 Last updated: 2025-09-05
Version code:
4
Creation date:
2018-07-10
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.keyboard27
Email:
ho*****@gmail.com

User Reviews

good enough. simple, but needs update for a lot more mathematical symbols. symbols for the likes of integral, congruence, similarity, inequality, and even the bracket which is most common in math operations.
by si*****, 2021-05-11

It does nor working in my phone (samsung A30)........ After installing in play store, it show only one option that is 'uninstall ' It is not showing the option to open .. So, fix this problem 😄😄
by K.*****, 2021-05-11
View all user reviews ›

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